The ghost charges Hamlet to perform a three-part task. He is asked to: 1. Revenge the murder of his father. 2. Hamlet is also not to contrive against his mother but to leave her to heaven and her own conscience. 3. Don't go insane during the task
Chat with our AI personalities
Horatio tell HAmlet that after midnight his father ghost shows up
He asks them to swear not to tell about the ghost's visit and why Hamlet may appear crazy.
The ghost of Hamlet's father appears to some guards. The guards tell Hamlet who says he will go watch for the ghost. Laertes, son of Polonius, embarks for France. Polonius tells his daughter Ophelia, who has been flirting with Hamlet (or maybe more, it's not clear), to give him the cold shoulder. The ghost appears to Hamlet, gets him alone and tells him that he was murdered by Hamlet's uncle and the current king, Claudius. Hamlet swears to revenge him then swears the guards to secrecy.
Hamlet doubts the ghost's statement that Claudius had murdered him--the ghost could be lying. He re-enacts the murder in a play and has it performed in front of Claudius. Sure enough, it causes an attack of conscience in Claudius.
Marcellus thinks that Horatio may know how to speak to a ghost because he is a University Man. I guess Marcellus assumes that's the kind of thing you learn at a University.