Synopses & Reviews
Which door would you go through to save the world?
David, Xander, and Toria King never know what new adventures--and dangers--await them beyond the mysterious portals hidden on the top floor of their new house. They have battled gladiators and the German army, dodged soldiers on both sides of the Civil War, and barely escaped a fierce attack in their own home.
Still they are no closer to finding their mother, who was pulled by powerful forces through a portal and lost in time.
Their only hope is to turn the tables on Taksidian, the menacing stranger who wants them out of the house so he can use it for his own twisted purposes.
But everything changes when a trip into the near future reveals the devastating outcome of Taksidian's schemes--a destroyed city filled with mutant creatures. It is only then that the Kings realize what they're really fighting for--the fate of humanity itself.
In the fourth installment of this stunning young adult series, the King family plummets into a nightmare of head-spinning action, as the house and the worlds that lay beyond grow increasingly dangerous.
David, Xander, Dad, and Keal have discovered a terrible secret. Now, finding Mom is only a small part of their mission. And time is running out. Using the portals to build an empire, Taksidian wants the house for himself, and there's nothing he won't do to get the family out. The consequences of his meddling reach far beyond the family--to the future of the world itself. The Kings know their survival depends on stopping the bloodthirsty assassin. If only they can find his weakness in time.
Most startling of all is their ability to change the path of history. But will their tinkering in time reunite the family and save the future . . . or set mankind on an irreversible course of destruction?