You have investigated Astagar’s manor, and encountered all manner (see what I did there?) of magic cray cray. In the end, you dealt with his imp familiar and the poltergeists that had been harassing you throughout, then encountered a zombiefied version of the A-man, himself. After eliminating these threats and removing a strange wand from Astagar’s lab table, the magic effects ceased.
One mystery was solved, but others remain. What’s up with that Amulet? The wand that was at the center of this mess? Those strange runes on the front door? The safe deposit box in the Turmish capital you found a receipt for?
Perhaps the biggest mystery is: What will the group do next?