Oh my! My Uncle?? I shall seek revenge for my father
Revenge the foul and unnatural murder of me. The serpent that did sting thy father's life Now wears his crown.
The ghost appears and tells Hamlet to follow but Horatio and Marcellus thinks it's a bad idea and tells him not to.
Hamlet follows the ghost outside and demands the ghost to speak and tell him where they were going
Hamlet agrees to listen and the ghost reveals that he is Hamlet's father spirit and that his uncle murdered him. Hamlet agrees to seek revenge for his father by any means.