Whitsun (Guide)

Early MYN Content and Onwards

This content is only available during Whitsun! For the history of this holiday see Whitsun (historical)

Eggs have abruptly appeared all over London – in bath tubs, balanced on chimneys, nestled in sofas, tucked in the holds of docked ships. And they're vast ones, the size of a beer barrel, an over-rounded dog, a prize-winning marrow.

Whitsun is an Easter-like event in which Londoners can buy, change and hatch eggs.

Event Timeline

For the 5th Whitsun (4th 1899/2024) the timeline is as follows:

• Event opens on Thursday, 9th of May 2024 at 12:00 BST. Everything becomes available.
• No more eggs after Monday, 20th of May 2024, 14:00 BST (11 days). The Reliable Eggmonger is removed and no more base eggs can be obtained. All other actions remain available, including augmenting, hatching, research, and De Gustibus.
• Event closes the following Thursday, 23rd of May 2024, 14:00 BST. All remaining eggs expire, including augmented eggs that have not yet hatched.

Event Currency: Amber Ha'pennies

The Amber Ha'penny is a "soft-FATE" Festival Currency for Whitsun. Use of FATE for Whitsun are mediated by purchasing and spending ha'pennies. All players receive 3 Ha'pennies for free, meaning that no Whitsun content is exclusive to paying players, although non-paying players may need to be more patient, or selective with the rewards they pick.

Each additional Amber Ha'penny beyond the 3 free ones costs 10 FATE, with a 33% bulk discount when purchasing 18. Note that Ha'pennies persist from year to year. This allows non-paying players to save up for The Device, but is also a consideration for paying players considering paying larger amounts.

The uses of Amber Ha'pennies are as follows, ordered roughly in decreasing mechanical value.

• Highly Illegal Experimental Augmentation Device (Probably) — . Permanent, allows you to hatch Thrice-Augmented Eggs. This is considered the most worthwhile purchase that you can make. If this is your first Whitsun and you do not plan on spending FATE, it is recommended that you save your pennies so that you can buy the device next year.
• Sartorial Augmentation — per item. See discussion below.
• Bellic Augmentation — per item. See discussion below.
• Legacy Eggs — per egg. The egg types that require ha'pennies rotate each year.
• Social Eggs — each. Some companions can only be created by exchanging eggs between players. These companions are not statistically impressive, but some of them unlock unique social actions.
• Hire a Rubbery Nurse to speed up the hatching - . Lets you bypass the 24-hour timer for one egg.
• A Permanent Arrangement with the Numismatrix - . This is not a great use of your ha'pennies. Laboratory services from the Numismatrix is only required for one contiguous period of time during the Railway storyline. That means practical research uses of her should only cost you 50 First City coins total, until such time as more currency projects are added. However, she does have a lot to say about coins.

How to Hatch Eggs

The main activity of Whitsun! The process can be broken down into four steps.

1. Obtain your egg

Eggs can be purchased at The Reliable Eggmonger. Every year, some eggs will be in-season, while other eggs will be out-of-season. In-season eggs cost regular items. Out-of-season eggs cost 1 Ha'penny each in addition to their item cost.

Please note: You can buy as many eggs as you want, but you can only rear one egg at a time.

2. Raise your egg

In order to raise your egg, you will have to either enlighten it three times or invigorate it three times, via the Bring Up your Egg storylet. (You cannot enlighten and invigorate an egg; you must do one or the other.) Fully invigorating an egg costs 9 Appalling Secrets, while fully enlightening an egg costs 15 Foxfire Candle Stubs and 6 Intriguing Snippets, regardless of type.

The "species" of item that hatches from your egg is determined by the type of egg you pick and how you raise it. For example, invigorating a Percipient Egg will cause it to hatch into a squirrel, while enlightening it will cause it to hatch into a wolf. Different "species" are associated with different stats.

Raising your egg should not be confused with augmenting it.

Please note: You can smash open your egg at any point before it is fully raised. Doing so will remove the egg, allowing you to raise a different one. It will also give you an item, and it will also refund you a Ha'penny if it was an out-of-season egg. Once it is fully raised (i.e. enlightened or invigorated three times), you cannot smash it open. You are locked into hatching it unless you can sell it at De Gustibus, but they will only accept up to two fully raised eggs per season.

An Aside: Social Eggs

Eggs can also be sent to other players in Bring Up your Egg after being fully Invigorated or Enlightened, at the cost of 1 x Amber Ha'penny. The egg will hatch immediately for the receiver, and will grant them a unique companion, different from the ones obtained through the solo hatching process.

3. Augment your egg

After you have fully raised your egg, you can choose to apply augments to it. There are two kinds of augments: creature-producing augments, and equipment-producing augments. These kinds of augments are mutually exclusive: applying an equipment-producing augment will override any creature-producing augments on the egg.

It is possible to hatch an egg without applying augments to it, but augments are required for the more valuable items. If you would like to hatch your egg without augments, you can skip to step 4.

Creature-producing augments

Creature-producing augments will cause your egg to hatch into a companion. They can be applied by taking your egg to two specific locations in London and by using the Highly Illegal Experimental Augmentation Device (Probably) through the Bring Up your Egg storylet. Location-specific augments cost regular items. The Illegal Augmentation Device costs 5 Ha'pennies, but can be used on as many eggs as you want.

A different "tier" of companion will hatch depending on whether you've applied 0, 1, 2, or 3 creature-producing augments. For example, if you augment an enlightened Scarlet Egg two times, it will hatch into a Warm-hearted Amber Iguana. If you augment an enlightened Scarlet Egg three times, it will hatch into a Rubbery Dragon. More augments result in more powerful companions, with triple-augmented eggs hatching into companions that give a bonus in an advanced skill.

The order in which you apply these augments does not matter; only the number of augments does. However, each augment has to be from a different source. For example, if you want to augment an egg three times, you must take it to both augmentation locations and use the Illegal Augmentation Machine on it once. You cannot simply augment the egg at one location three times. (This means that the most valuable companions require having the Illegal Augmentation Machine.)

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Equipment-producing augments

Equipment-producing augments will cause your egg to hatch into something other than a companion, like a weapon or a hat. Unlike creature-producing augments, you can only apply one equipment-producing augment to an egg.

There are currently two types of equipment-producing augments. Both cost 3 Ha'pennies to apply every time.

List of equipment-producing augments

Augment	Location (Storylet)	Cost	Results
Sartorial Augmentation	Ladybones Road (A Tailor's Augmentation)	2 x Bottle of Muscaria Brandy and 3	Mostly clothing; one weapon.
Bellic Augmentation	Watchmaker's Hill (An Augmentation in the Art of War)	2 x Bottle of Broken Giant 1844 and 3	Mostly weapons; one luggage.

4. Hatch your egg

After you have augmented your egg (or not), you can hatch it.

Eggs treated with equipment-producing augments hatch instantly.

Unaugmented eggs and eggs treated with creature-producing augments require 23 hours to hatch. Incubation is started through the Bring Up your Egg storylet. You can spend one Ha'penny or 10 Fate to bypass the hatching time, but this is generally not seen as a good use of Ha'pennies.

After incubation completes, a message will appear in your inbox saying that your egg is ready to be hatched. A new storylet will appear in your Lodgings called The Hatchening, redirecting you to The Hatching: What Emerges. There, you can admire the wondrous occasion that is a birth (and hopefully keep the d__n place intact).

Please note: while an egg is incubating, you cannot raise another one. You must wait for your current egg to hatch first.

Egg Results

Best-in-slot stats (amongst freely available and seasonal items) are in bold and shared BiS are in italics. A more in depth overview of the options can be found in this subguide.

Other Things to do with Eggs

Sinning Jenny's Finishing School (FATE)

At Sinning Jenny's Finishing School, it's possible to lead your students in study by using untreated eggs. While most options will give you items, it is possible to obtain a Dark-Carapaced Crustacean and even a Gilded Crustacean by considering Aged Eggs from a Red Science perspective. Each egg will advance your syllabus by one step (so you can only open five eggs per group of students) and increase Credit with the Headmistress by 1. This action does consume the egg (so buy spares if you want to do more than one egg per term), but any Ha'pennies spent on eggs will be refunded.

Investigating Eggs

Untreated Eggs can also be investigated in your Laboratory. For 100 x Laboratory Research, each egg will give +5 CP Speculation about Whitsun and increase The Prestige of your Laboratory, as well as +1 CP in a Skill and an item worth 12.5. Each egg research project also has a Focus, allowing you to use one of the Esoteric Arts.

Wiki note: Lab experiments will not refund ha'pennies, so be careful!

Selling Eggs

Eggs can be sold to buyers in the Bone Market.

• Selling a Scarlet Egg to a Rubbery Collector yields 10 x Nightsoil of the Bazaar
• Selling an Aged Egg to an Enthusiast of the Ancient World yields 10 x Bessemer Steel Ingot
• Selling a Percipient Egg to an Author of Gothic Tales yields 10 x Hinterland Scrip
• Selling a Pelagic Egg to a Zailor with Particular Interests yields 50 x Nodule of Warm Amber

Eggs can also be sold to De Gustibus at Ladybones Road. See the De Gustibus section for more details.

Breaking Open Eggs

It is also possible to break open your eggs on the Bring Up your Egg page and—for untreated eggs—The Trials of Patience. Eggs can be broken open at any point before they are fully enlightened or invigorated, yielding a wide range of rewards. Every break open action is a 40% luck check and has two possible results for each success and failure. Two rare items (bolded) can be obtained in this way.

If you break open or smash open an egg that costs an Amber Ha'penny, breaking open that egg recovers you the penny, both in the success and the failure case.

Non-Egg Activities

De Gustibus

De Gustibus opens its doors to London each Whitsun and may be found at Ladybones Road. In addition to various non-Egg options, it is possible to sell them Eggs in almost any state (Eggs with Sartorial Augmentation or Bellic Augmentation are not considered edible) for various rewards. This is the only time of year that a Vial of Masters' Blood can be exchanged for A Sealed Copy of the Crimson Book. Selling an augmented egg of any kind to De Gustibus will increase De Gustibus: Eggxhaustion, so you can only sell a maximum of two augmented eggs to them per season. Additionally if your Noman survives this long, you can get the achievement Memories of a Doubled Spring. Also of note is that you can turn your Hellworm Milk into cheese, given a year's time.

Treated Eggs

Only two treated eggs may be sold each Whitsun. They may not be Hatching, have a Sartorial Augmentation, nor a Bellic Augmentation. Multiple augmentations do not change the payout from selling to them.

Speculation about Whitsun

Speculation about Whitsun can be obtained while doing various actions in London. It is mostly useless, however at level 10, it can be used to publish a Whitsun Edition of your newspaper if you own one.

The Summer Nursery (FATE)

The Summer Nursery is a repeatable activity that was introduced in 2024. Any character who has hatched at least one egg may unlock the activity for 20 FATE through the storylet The Summer Nursery: An Invitation. Access to the Nursery may only be purchased during Whitsun, but it may be played year-round. It rewards Emetic Revelations, Venom-Rubies, and Moon-Pearls, with a one-time reward of an Elemental Secret for completing the carousel five times.

Historical Information

Previous years' timelines

3rd 1899/2023	For the 4th Whitsun (3rd 1899/2023) the timeline is as follows: Event opens on Thursday, 11th of May 2023 at 12:00 BST. Everything becomes available. No more eggs after Monday, 22nd of May 2023, 14:00 BST (11 days). The Reliable Eggmonger is removed and no more base eggs can be obtained. All other actions remain available, including augmenting, hatching, research, and De Gustibus. Event closes the following Thursday, 25th of May 2023, 14:00 BST. All remaining eggs expire, including augmented eggs that have not yet hatched.	2nd 1899/2022	For the third Whitsun (2nd 1899/2022), the announced timeline is as follows: Event opens on Monday, 9th of May 2022 at 12:00 BST. Everything becomes available. No more eggs after Friday the following week (11 days, 20th of May 14:00 BST). The Reliable Eggmonger is removed and no more base eggs can be obtained. All other actions remain available, including augmenting, hatching, research, and De Gustibus. Event closes the following Monday (14 days, 23rd of May 14:00 BST). All remaining eggs expire, including augmented eggs that have not yet hatched.
1899/2021	For the second Whitsun (1899/2021), the original announced timeline was as follows: Event opens on a Monday. Everything becomes available. No more eggs after Friday the following week (11 days). The Reliable Eggmonger is removed and no more base eggs can be obtained. All other actions remain available, including augmenting, hatching, research, and De Gustibus. Event closes the following Monday (14 days). All remaining eggs expire, including augmented eggs that have not yet hatched. Following server troubles during the first week, the event was extended by three days. Future iterations of Whitsun will likely follow the original timeline, barring other exceptional circumstances.

Historical egg availability

Year	Scarlet Egg	Aged Egg	Percipient Egg	Pelagic Egg
2020	✓	✓	didn't exist	didn't exist
2021		✓	✓	didn't exist
2022	✓			✓
2023		✓	✓
2024	✓			✓