Tom refuses to give Mab the keys, but when Mab holds a knife to little Mary's throat, he gives in. Mab opens the first trunk and finds Mam's wedding gown, some vials of liquid, bags full of gold, books in Greek, and a letter to Tom, also in Greek. It says that only he can open the other two trunks, in moonlight, and that Mam's two sisters sleep inside them and will protect Tom with their own lives if necessary. Without telling Mab what is in the other two trunks, he agrees to open them that night if Alice and his family are set free, and Mab lets them go.