内容简介：
Amber and her little brother Ethan have just moved to Shadow City. Amber, an avid reader of ghost stories and mysteries, meets curious Sam and his bookworm sister Ruth, who share the same interests. Together, they form the Shadow City Ghost Hunters, a club whose purpose is to explore haunted houses and solve mysteries. Sam tells Amber of a nearby haunted house, and together they investigate Mapleshade Manor, an abandoned home that is said to be haunted by the ghost of Lucius Mapleshade, former owner, explorer and treasure hunter. The ghost is rumored to be protecting a treasure buried deep within a secret passage of the old house. Can brave Amber, cowardly Ethan, Sam and Ruth discover the secret of the house and find the treasure before the ghost finds them? Join the Shadow City Ghost Hunters in their first adventure as they unravel the The Mystery of Mapleshade Manor.