Welcome, and thank you for being specific in your choice of forum handle. 'T would have been too easy to confuse you with @ThatKobold otherwise.
The premise for The Manik sounds interesting! Fantasy, ship, sinking, early 20th century technology… (No idea why anyone would suspect Pearl Harbour as an inspiration, since that was forty years later…)
Horror or otherwise, any genre is cool when it tickles your fancy and makes you a passionate writer. I wish you a good time with Inform. Just so you know, there’s a review of it here: Review: Inform 7.
Glad to have you!
Rovarsson