Squash and Ginny's journey continues as they search for the Goblet of Infinity, a treasure that creates a never-ending supply of delicious drinks! But when the cats arrive at the goblet's hiding place deep in a magical forest, the treasure is nowhere to be found. Instead, the cats meet a unibear named Fern who is convinced that the evil Dragon Witch has stolen the goblet-they must find and confront her! But as Squash and Ginny try to get to the bottom of the mystery, they begin to see that not everything (or everyone) is exactly as they seem.