Birth of Daenerys's Dragons

After Khal Drogo dies from a festering wound, Daenerys uses blood magic to try to save him, but the ritual leaves him in a vegetative state. She smothers him out of mercy and then walks into his funeral pyre with her three dragon eggs. The eggs hatch, and Daenerys emerges unscathed with three newborn dragons. This event is the climax of Daenerys's arc, establishing her as the 'Mother of Dragons' and a major magical and political force.