Brandon is looking forward to a fun-filled month in Palisade, Colorado. Recently retired missionary Great Aunt Sarah has invited her nephews for a month long visit. The Cousin Crew - made up of Brandon, his older brother Alex, younger brother Trey, and cousin Kyle, can't wait to explore the rambling old house and surrounding orchard. But a middle of the night break-in and the discovery of secret passageways is more adventure than the kids expected. When Brandon comes face to face with an intruder he surprises everyone, especially himself. Has trouble followed Aunt Sarah from far-away Colombia? Or is the danger closer to home? Will a black and white cat, an old map, a mysterious puzzle box and a skeleton key help the kids discover the old house's secrets before it's too late?