Cymbeline — Act 3, Scene 4: Country near Milford-Haven.

Pisanio and Imogen arrive near Milford Haven, where she eagerly asks for Posthumus, then sees Pisanio’s distress and receives a letter from her husband. The letter falsely accuses her of adultery and orders Pisanio to kill her. Imogen is devastated and defends her loyalty, while Pisanio refuses to obey such a cruel command and instead says a villain has deceived Posthumus. He tells her she cannot safely return to court or stay in Britain, then suggests she disguise herself and seek service with Caius Lucius, who is coming to Milford Haven. Before they part, he gives her the queen’s box of medicines and leaves.