Malcolm Pace

Malcolm belongs to Athena's cabin, and is a son of Athena. He is also second-in-command of the Athena cabin, and the half-brother to Annabeth.

The Battle of the Labyrinth
Malcolm happens to walk in upon Percy and Annabeth hugging, and he apologizes and leaves, but the moment was already ruined by Percy's awkwardness. He can also be considered to be the first person at Camp Half-Blood that notices Percy's and Annabeth's feelings for each other.

The Last Olympian
Malcolm was one of the campers that fought for Olympus in the battle of New York City. He actually was the one who lead Athena's cabin because Annabeth was with Percy.

Powers

 * He is very knowledgeable in architecture, history and Greek myths, which is very useful in journeys and battles.
 * He is also a master strategist.
 * He is trained in hand-to-hand combat during his stay at Camp Half-Blood.
 * He is extremely intelligent, wise, and clever.
 * Due to the fact that his is a son of Athena, he is good at arts and crafts.

Trivia

 * Malcolm is the only named Athena camper, except for Annabeth.