Reports reach Gertrude that Ophelia is mad. Ophelia enters singing about death and betrayal. After Ophelia has gone, Claudius agonizes over her madness and over the stir created by the return of an angry Laertes. When Laertes breaks in on Claudius and Gertrude, Claudius asserts his innocence with regard to Polonius’s death. The reappearance of the mad Ophelia is devastating to Laertes.