Answer: a serpents egg
Step-by-step explanation:
In the play by William Shakespeare of Julius Caesar, Brutus is in his orchid before the other conspirators arrive and reasons within himself why Caesar must be killed.
He believes Caesar to be a good man but he fears that should Caesar accept the crown to rule Rome, he would become corrupted with its power. He likens Caesar to a serpent's egg that may look innocent but would become mischievous when it is born as other snakes are.