Zander Olinga’s grandmother is the owner of the fabled Number Nine Plaza, a spectacular nineteen-story skyscraper. The Nine, as it’s called, has everything imaginable, including a massive Ferris wheel on its rooftop, monorail tracks suspended from its ceiling, and twenty-five glass elevators. But there’s something evil looming in the shadows…

When Zack’s younger sister dies in a tragic accident, his family moves to a small town to try and heal from all the pain. Eleven-year-old Zack blames himself for his sister’s death, and he struggles to find any comfort in his new surroundings. Vista Point is home to many mysterious landmarks…

2019 Washington State Book Award winner; 2019 Edgar Award nominee. Orphan Elizabeth Somers’s mean aunt and uncle ship her off to the ominous Winterhouse Hotel, owned by the peculiar Norbridge Falls. Upon arrival, Elizabeth discovers that Winterhouse has many charms―most notably its massive library. It’s not long before she locates a magical book of puzzles…

Back at the Winterhouse hotel for another holiday season, Elizabeth and Freddy dig deeper into the mystery surrounding Riley S. Granger, a hotel guest who left behind odd artifacts—one being a magical book that the evil Gracella Winters once attempted to use to gain destructive power over the entire Falls lineage…

It’s springtime at Winterhouse and Elizabeth is settling into the joyful chaos of her new home. But it isn’t long before she and Freddy are drawn into an ominous new mystery. Guests at the hotel start behaving oddly, and Elizabeth’s powers manifest in thrilling―sometimes frightening―new ways…