It's wintertime at Greenglass House. The creaky smuggler's inn is always quiet during this season, and Milo, the innkeepers' adopted son, plans to spend his holidays relaxing. But on an icy night, out of nowhere, the guest bell rings. Soon Milo's home is bursting with odd, secretive guests. As objects go missing, Milo must untangle the web of deepening mysteries to discover the truth about Greenglass House... Winner of the Edgar Award for Best Juvenile Mystery.