The trio take their leave and Kratos and Atreus ascend to the top to find Mímir trapped in a tree as a form of torture by Odin. He informs the adventurers that the highest mountain, in fact ...

Do so, then pass through to find the seventh Odin’s Raven flying ahead, with Mimir’s head clenched in its talons. As you near the end of the level, you’ll have to knock over a giant hammer.