My Players are about to enter the Sea of Shadows (Sargossa). What should they find? (Session Brainstorming)
They heard a plausible rumor, that within the center of this completely magical dead-zone, there is a shortcut /portal that will save them 6 months of travel time, as long as they aim their ship perfectly at the center of the Sea of Shadows to maintain trajectory once they lose control. They have been told that this portal will take them into 'The Weird' allowing them to avoid the long journey through Illithid territory.
What should they find? Some cosmic being that devours magical energy? A dead god? A giant, primordial space hamster? I'm not going to stonewall them with a rug pull, so I still plan to provide them with the shortcut into The Weird— but with an unexpected cost. The portal they are seeking, is probably getting devoured by something that will take them somewhere very, very strange.
Consequences? Maybe it will save them 6 months of travel time in the spelljammer world, but the wormhole has the perception of 1000 years of travel. Maybe their ship and them shrink to the size of ant for a short time. Since they are traveling into essentially a magical black hole to a place where space-faring fantasy society's has deemed "The Weird" I imagine there should be some be extreme wild magic effects occuring.