One night, in his cups, he drank a jar of wildfire, after telling his friends it would transform him into a dragon, but the gods were kind and it transformed him into a corpse.
George R. R. Martin (2012). “George R. R. Martin's A Game of Thrones 5-Book Boxed Set (Song of Ice and Fire Series): A Game of Thrones, A Clash of Kings, A Storm of Swords, A Feast for Crows, and and A Dance with Dragons”, p.790, Bantam
