It's time to enter the last story of the house.

There were things that seemed odd when the Kings first moved into their new house--but things got really strange when they realized the rooms upstairs were portals to other worlds. Even though the rooms were dangerous, it still seemed fun until people starting coming into the house and Mom was kidnapped. They've been desperately searching for her, but they risk their lives every time they enter a world.

Xander has traveled back to visit Uncle Jesse as a boy, but that turns out to be the last place Xander wants to be. Jesse tells him David died. But Xander's not about to let that happen--even if it already did. It doesn't matter how many worlds he has to go to or what it takes, he is going to find a way to change the future.