D&D adventure idea; ghost tower
In a forest haunted by mindless undead, a tower appears then disappears annually. The undead are too dangerous for most locals to be curious. The PCs come into a map of when the place WASN’T a forest but the wizard’s tower of Scziss the Mad. That tower supposedly fell in a huge explosion when Scziss and his opponent’s spell combined, and contained a huge orrery which Scziss used to predict a star map of the future as well as a batch of powerful magic items. (1/2)
D&D adventure idea; ghost tower
The PCs decide to jack those items but;
* the tower’s full of besiegers and guards
* they’re basically in a countdown, where if they don’t get out they’ll blow up in the past along with the tower, wizards, and the army fated to become undead
* the PCs looting magic items suggests Scziss couldn’t use them and created the current timeline
* BUT if the PCs grab the loot and get out within their own time it’s entirely possible Scziss escaped with them (2/2)