Climax.

The climax of this myth is when Set calls for a final challenge. The challenge is to make a boat out of stone and race the boats. Horus cheats and makes his out of wood, Set cuts off the top of a mountain and uses that as his boat. Set's boat sinks right away, and Horus sails on. Set becomes angry and turns himself into hippopotamus, and attacks Horus. Horus almost kills Set but the gods stop him before he can.