Hubert Crowell 
Lost Treasure of Grassy Cove Volume 3 of Drawn to Darkness 

Matthew, Clair, John, and Joann had grown close in the small Tennessee town, playing along with the mountain and the river that flowed into the nearby lake. The Lost Treasure of Grassy Cove is the third in the series “Drawn to Darkness.” A few items in a box start the group off on another adventure.