sentences:  Upon Llewellyn's return, the dog greets him with a bloody face; thinking the animal has eaten his child, Llewellyn immediately draws his sword and kills Gelert.However, Llewellyn's son is soon found alive near the dead body of a wolf, revealing Gelert had actually saved the child from harm.In her 1992 paper "The Ambiguous Guardians", Adrienne Mayor cites the fifth century CE narrative "The Omen of the Wolf" as an earlier echo of both the 1800 fable and the urban legend as it is today.