The Lightning Thief
What does Echina mean by the line prove your bloodline
Lighting thief
Lighting thief
Echidna is referring to Percy's parentage.... he is the son of Poseidon, and she wants him to prove it.
"If you are the son of Poseidon," Echidna hissed, "you would not fear water. Jump, Percy Jackson. Show me that water will not harm you. Jump and retrieve your sword. Prove your bloodline."