The story of the Keyhouse, a New England mansion, with doors that transform all who walk through them, and home to a hate-filled and relentless creature that will not rest until it opens the most terrible door of all.

The true history of the Locke family is revealed as Tyler and Kinsey travel through time and Zack Wells assumes a new form.

Dodge continues his relentless quest to find the key to the black door, and raises an army of shadows to wipe out anyone who might get in his way. Surrounded and outnumbered, the Locke children find themselves fighting a desperate battle all alone.

Since starting at boarding school Alena's been harassed every day by Philippa and the lacrosse team. But Alena's friend Josephine is not going to accept that anymore. If Alena does not fight back then Josephine will take matters into her own hands. There's just one problem--Josephine has been dead for a year.

A birthday gift for two little girls unexpectedly throws open a door to a monster on eight legs.

In Europe on a business trip, Jonathan Webb finds himself wandering the night in a strange foreign city, with his new friend, the mysterious and violent Rainer as his guide. Rainer shows Jonathan the hidden world of the night, a world without rules or limits. But when the fun turns dangerous, Jonathan may find himself trapped in the dark... And the question is, what will he do to get home?