Duncan demands and receives assurances that the former thane of Cawdor has been executed. When Macbeth, Banquo, Ross, and Angus join Duncan, he offers thanks to Macbeth and Banquo. He then announces his intention to have his son Malcolm succeed him as king and his plan to visit Macbeth at Inverness. Macbeth sets out ahead of him to prepare for the royal visit. Now that Malcolm has been named Duncan's successor, Macbeth is convinced that he can become king only by killing Duncan.