Tells of the Keyhouse, an unlikely New England mansion, with fantastic doors that transform all who dare to walk through them--and home to a hate-filled and relentless creature that will not rest until it forces open the most terrible door of all. Unlock the story of the Locke siblings after their father's murder as they return to their ancestral home of Keyhouse, a place filled with dark doors and magic keys that open them, and a malicious presence...

Nate Adams's adventures continue as he meets new Yo-kai, including Herbivore Yo-Kai Herbiboy, Hungry Yo-Kai Hungramps, and Klutz Yo-Kai Clodzilla.

When Brody comes face to face with a ghost, she tells him he is a ghost seer and she needs his help catching a killer.

"A mysterious soul-sucking orb called Vector and a band of dangerous ghosts take over one of the Magic Law Association prisons. Unfortunately, Muhyo has fallen into a deep sleep and isn't waking up! With Muhyo out for the count, who will come to the Association's rescue?"--P. 4 of cover.