You've been through this before
From Fallen London Wiki
| Spoiler warning! This page contains details about Fallen London Actions. |
From: Designing your Zubmarine
'The Naval Architect is flabbergasted. "You say you solved these problems in a work of futuristic fiction? Good God! That's amazing! Show me how you did it!"
Unlocked with 
1 x Copy of your Tale of the Future
Success
Fiction? Hopefully not
[…]The Naval Architect is convinced[…]. He has put aside one of the larger dockside sheds and some machinery to build the thing. You'll have to provide most of the material. Still, a working Zubmarine...
[Find the rest of the story at https://www.fallenlondon.com]
An occurrence! Your 'Acquiring a Ship' Quality is now 8 - Acquiring a Zubmarine!
