Answer:
In Percy Jackson: The Lightning Thief, yes. Hermes' son. Page number varies based on the book you own.
Explanation:
Luke is a character introduced early in the demi-god camp and gives Percy gifts to help him on a quest. One gift was a shield that held the lightning in it framing Percy and also having him deliver it to Hades without him knowing. Luke did this to start war among the gods.
(If you are talking about a different Percy, remove my answer. No hard feelings)
