You explained Caret's current condition to Jody.
Caret is probably hiding from the truth. It's not safe for him to wander the forest. I have to help him.
%n%, please find Shannon, the Cult Scout. Borrow Abu's belongings from him, and show them to Caret. This will force Caret to come to terms with the fact that Abu is really dead.
Shannon is probably surveying the area near the Abandoned Camp right now.
You knew you'd have to collect Abu's belongings from Shannon, then talk to Caret.