Magic Tree House Collection 16 Books Set by Mary Pope Osborne | Early Chapter Book Adventure Series Agatha Christie inspired books The police are convinced there's

The police are convinced there's something fishy going on when the grave is opened to reveal the centuries-dead remains of a man

But will anyone remember to give Tiggs his dinner

bullying and mental health issues

Tengal the Savage Shark

The Golden Triangle The Return of Arsène Lupin

Magic Tree House Collection 16 Books Set by Mary Pope Osborne | Early Chapter Book Adventure Series Agatha Christie inspired books The police are convinced there'sTitles in this set: Valley of the Dinosaurs Castle of Mystery Secret of the Pyramid Pirates' Treasure! Night of the Ninjas Adventure on the Amazon Mammoth to the Rescue Moon Misson Diving with Dolphins A Wild West Ride Lions on the Loose Icy Escape Racing with Gladiators Palace of the Dragon King Voyage of the Vikings Olympic Challenge