Cuttlefish That Loves Diving
Remember Roselle's mausoleum island in the Foggy Sea? Maybe it was corrupted by COI, as the creatures there were stuck in a cycle of life and death. I think something similar is about to happen in this village.
The way Fors is looking at Lumian and the emotions he sees when she stares at him and all the high level info and help and help shes giving him makes me believe that Klein in his sleep has sent a revelation about Lumian and that he will be key to awakening him. That would explain Fors emotions and the help shws providing as she sees him as the key to The Fool.