WHO SENT AMBER LEE AN ANONYMOUS LETTER?

Everyone loves the new teacher, Mr. Merlin. Mr. Merlin used to be a spy, and he knows all about secret codes and the strange and gross ways the police solve mysteries.

Now there's a mystery in their very own class -- someone sent Amber Lee Johnson an anonymous letter. Noelle and Todd want to solve the mystery before anyone else. But first they have to figure out Mr. Merlin's clues. How can a bunch of envelopes tell them who sent the letter?

Eight-year-old Jack and his younger sister Annie find a magic tree house, which whisks them back to an ancient time zone where they see live dinosaurs.

Jack and Annie are in deep trouble when the Magic Tree House whisks them backto the days of desert islands, secret maps, hidden goldQand ruthless pirates!

The Third-Grade Detectives are looking forward to their field trip to a local art museum, where a priceless fifteenth-century statue of Joan of Arc is on loan from a Paris museum. But when they arrive, they discover that the statue has been stolen
The police quickly find the statue -- smashed into pieces and thrown in a Dumpster. Why would someone steal the statue only to destroy it? It looks like a new case for the Third-Grade Detectives -- even if the museum director doesn't seem to want their help.

Jack and Annie take a trip in their tree house back to ancient Egypt, where they help a queen's mummy continue her voyage to the Next Life.

Jack and Annie travel through time in the Magic Tree House and explore history while experiencing adventure after adventure.