Celyn was with Naomi, Thalia Grace, and Phoebe at an Amazon stronghold in San Juan, Puerto Rico. They took Reyna Avila Ramírez-Arellano to the stronghold as bait to lead Orion into an ambush. It failed and she was killed by Orion's giant arrows along with Naomi and Phoebe.
- Immortality due to being one of Artemis' hunters (except if she falls in battle or breaks her oath).
- Expert archer and skilled with hunting knives.
- Highly skilled hunter.
- Can make a bow appear and or disappear at any given time.
- Highly skilled at tracking.
- Highly skilled healer.
- More strength and speed than any regular mortal, demigod, or nymph.
- Can speak to wild animals.