Thalia"pinecone face" Grace

Thalia Grace is the Greek demigod daughter of Zeus and mortal, Beryl Grace, and the sister of Roman demigod Jason Grace. She was transformed into a pine tree on Half-Blood Hill, which still stands as the official border for Camp Half-Blood to this day. Later on, she was revived with the Golden Fleece. She is currently the lieutenant of the Hunters of Artemis.