Explore the motif of debts.

The motif of paying one's debts is strong in the novel. It starts off with Emmett returning home after paying the debt in juvenile home for what happened to the boy his punched. Duchess is the character who strongly lives by the notion of paying debts, something which he picked up on in an orphanage from the teachings by a nun. While on the road, Emmett wanted to start anew, but finds himself plagued by debt once again - a promise he makes to Sister Agnes to help Duchess, and a promise he makes to Sally to call her.