Any one know a good title for my story?

its about a character who has to defeat this guy how is about 17 and he is very cute...well maybe. not totally shure yet. anyway, she is the daughter of zeus and has vampire powers. her boyfriend is the son of ares and cannot die. her friend is the daughter of Poseidon and can project. other characters two....but the prophecy calls for 5 characters...so ya! help wof a title would be nice! thx