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.

Marzana and her best friend, Nialla, are bored. In a city where normal rules don't apply, it seems that adventure should be everywhere, yet nothing exciting ever happens to them. Nothing, that is, until Marzana's parents are recruited to help solve a kidnapping that makes no sense. This could be the excitement Marzana and Nialla have been looking for-if they can crack the case without getting caught meddling. They gather a group of kid detectives...

New York Times Bestseller * National Book Award Nominee * Winner of the Edgar Award for Best Juvenile Mystery

It's wintertime at Greenglass House. The creaky smuggler's inn is always quiet during this season, and twelve-year-old Milo, the innkeepers' adopted son, plans to spend his holidays relaxing.

But on the first icy night of vacation, out of nowhere, the guest bell rings. Then rings again. And again...

Soon

...

"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"--

"Nothing is what it seems and there's always more than one side to the story as a group of strangers trapped in an inn slowly reveal their secrets in this new standalone mystery set in the world of the best-selling Greenglass House. The rain hasn't stopped for a week, and the twelve guests of the Blue Vein Tavern are trapped by flooded roads and the rising Skidwrack River. Among them are a ship's captain, tattooed twins, a musician, and a young girl...