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."