While staying at the remote and reputedly haunted Maine inn run by her father and pregnant stepmother, sixteen-year-old Cynda feels increasingly isolated from her father's new family and finds solace in the attentions of a charming but mysterious guest.

One winter at the Greenglass House, the innkeepers' adopted son Milo hears dozens of strange stories from secretive guests who are somehow or another connected with the history of the House. Things go missing from the house, prompting Milo and Meddy, the cook's daughter, to investigate.

Ten-year-old Leo's future and the fate of the extraordinary Whippet Hotel, where his father is the maintenance man, are at stake when a series of cryptic boxes leads Leo to hidden floors, strange puzzles, and unexpected alliances.

Elizabeth, eleven, spends Christmas break at Winterhouse Hotel under strange circumstances, where she discovers that she has magic, and her love of puzzles helps her solve a mystery.

Relates the rise of Tom, the hotel cat, from catcher of mice in the cellar to successful upstairs cat in charge of the hotel's guest cats.

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

Sixteen-year-old Mattie, determined to attend college and be a writer against the wishes of her father and boyfriend, takes a job at a hotel in 1906 where the death of a guest renews her determination to live her own life.

"Twelve-year-old Milo is stuck spending the winter holidays in a house full of strange guests who are not what they seem--again! He will have to work with friends old and new to uncover clues in search of a mysterious map and a famous smuggler's lost haul"--

At the Castellana Hilton in 1957 Madrid, eighteen-year-old Daniel Matheson connects with Ana Moreno through photography and fate as Daniel discovers the incredibly dark side of the city under Generalissimo Franco's rule. Madrid, 1957. Daniel Matheson, the son of a Texas oil tycoon, arrives in Madrid with his parents hoping to connect with the country of his mother's birth through the lens of his camera. He meets Ana Moreno, whose family's interweaving...