eowulf found out what happens when you bathe in dragon's blood.

Coventry is a small state with big magic.  And Claudia Nevermore knows this all too well.  On the trail of an ancient Hittite god, Kuzun, Claudia crosses paths with an unlikely hero, Beowulf.  Made immortal by his duel with the great dragon Grendel, Beowulf was a hero for hire, until he lost his license.