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.

At Greenglass House, a smuggler's inn, twelve-year-old Milo, the innkeepers' adopted son, plans to spend his winter holidays relaxing but soon guests are arriving with strange stories about the house sending Milo and Meddy, the cook's daughter, on an adventure.

Hetty Hyssop and her assistant ghosthunters travel to a seaside hotel to investigate the appearance of one of the most dangerous ghosts in the world.

Toby lives in a hotel by the sea. When his friendship with Eliza and her mermaid parents arouses suspicion, he tries to disguise the mermaids as hotel guests. Trying to hide a family with fins and tails is tougher than Toby thinks.

It takes a tight-knight team to keep the Hotel running smoothly, and Elevator Bird is at the center of it all. He helps people get where they need to go and has a kind word for everyone he meets. Elevetar Bird makes everyone's day brighter. So when he confesses to his friend Mousey that he's always longed for a room with a view, Mousey wants to make it happen. All of Elevator Bird's friends hatch a secret plan to make sure Elevator Bird has the nest...

Young Lakas convinces his friends Tick A. Boom, Firefoot, and Fernando to fight against their eviction, while fighting for needed repairs and the right to have karaoke parties in the lobby of the hotel that they call home.

Leo and Remi have gotten used to the strangeness of the Whippet Hotel, but when the entire top floor is hoisted into the sky and transported to the field of wacky inventions, they find that they must compete against a number of foes to solve a puzzle or lose their beloved hotel forever.

"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"--

"Eloise loves, loves, loves snow! So when snow starts falling in New York City, she rushes outside to have some fun, and makes a snowman as only Eloise can!"--Page [4] of cover. When snow starts falling in New York City, Eloise skips breakfast to rush out to Central Park to build a snowman.

There's a storm brewing over Eerie-on-Sea, and the fisherfolk say a monster is the cause. Someone has woken the ancient Gargantis, who sleeps in the watery caves beneath this spooky seaside town where legends have a habit of coming to life. It seems the Gargantis is looking for something: a treasure stolen from her underwater lair. And it just might be in the Lost-and-Foundery at the Grand Nautilus Hotel, in the care of one Herbert Lemon, Lost-and-Founder....