From Fallen London Wiki (Staging)

At the Shore of Midnight, 5th Edition, "The Incandescent Bookseller is already halfway through wrapping it. This one's for you – and it seems he won't take no for an answer."

unlocked with all main attributes at least base 111

"One last purchase

[full text snipped]

"An occurrence! Your 'Acquaintance: the Incandescent Bookseller' Quality is now 2 - The Bookseller has moved on to new shores!

You now have 1 x At the Shore of Midnight, 5th Edition."