Title: Uncharted : a Gates family mystery
Subjects: Action & Adventure - General, Media Tie-In, Mysteries, Espionage, & Detective Stories, Juvenile Fiction / Movie or Television Tie-In, Juvenile Fiction, Children's Books/All Ages, Children: Grades 4-6, Lewis and Clark Expedition (1804-1806), Brothers and sisters, Louisiana Purchase, Treasure troves, Adventure and adventurers, Buried treasure, Twins, Siblings, Adventure fiction, Children's fiction, Mystery and detective stories