Send him in memory of yourself, with your own reasons
From Fallen London Wiki (Staging)
| A player-created Guide is available for this content: Marigold Station (Guide) |
| Spoiler warning! This page contains details about Fallen London Actions. |
From: The Grey Man Departs
You have walked into Hell more than once. Let him conjure up why you did that, and copy you in form.
Unlocked with 
Success
Mirrorfed
The Grey Man speaks to you in your own voice before he goes[…] You turn away with a shudder […] With any luck, he did not […] learn […] why you came back out of Hell again.
Hell's Emissary is amused by your discomfort[…] to offer a generous reward.
[…] the Grey Man is gone. […][Find the rest of the story at https://www.fallenlondon.com]
Success Instructions: If you think it is a good idea, you may return to Moloch Street and build a spur line connecting London more directly to the Tracklayers' City. Then again, you may prefer to keep a bit more distance between them.
In either case, the story of the Grey Man and the Spindlewolf is at an end. The city remains.
You have left the Tracklayers' City free to take its own course. (Sets 
Exploration of a Hinterland City to 100)
You've gained 1 x Coruscating Soul
You've lost 3 x Favours: Hell
