Thanks, I'm glad you liked it! 😊 I'm not actually familiar with Forbidden Island, but I'll give it a look! 👍 Ah that is a really good catch, I did have a draft which discusses who stole it, but I must have accidentally cut out the references to it.
I'll add the text that discusses it back in once the Jam is done, but my intention was the zealot cells that align with Lassimer stile the relics, then cast them into the basin below the city, where then the guardians formed independently from them afterwards as extant beings, but I'll be sure to expand and clarify that when I update it.