The Duke returns to the friary to find Mariana walking there. Isabella arrives and tells the Duke that she has arranged the rendezvous with Angelo for that night. Angelo showed her how to come into the house through a wooden gate in the vineyard. The Duke introduces Isabella and Mariana to each other and tells Mariana to go with Isabella who will explain an idea they have to make her happy again. The two women return and Mariana agrees to the plan if the friar (Duke) agrees that she should. The Duke tells her he urges her to do it, and she should not fear because she is not committing sin because Angelo "is [her] husband on a precontract;/ To bring [them] this together, 'tis no sin."
