what are three event from moby dick including ahab?

Here's one to get you started!

Once the Pequod is too far away from Nantucket’s harbor to turn back easily, Ahab reveals his diabolical purpose to the crew, forcing them to swear that they’ll aid him in his ungodly revenge quest. And he’s got another surprise up his sleeve: before departing, Ahab smuggles his own harpooneer, Fedallah, and his own boat crew on board the Pequod, just in case the regular crew don’t want to risk their lives by being in a whaling boat with a guy with one leg.