Damasen

Damasen is the giant son of Gaea and Tartarus, created to be the nemesis of Ares, God of War.

Biography
Damasen was born to oppose Ares/Mars, god of war. Being Ares's nemesis, Damasen is peaceful and helpful, and spent his life in the mortal world living as a farmer.

One day, a drakon appeared in the mortal world and killed one of Damasen's farmer friends. In rage, Damasen tracked down the drakon and killed it. He was condemned to Tartarus for slaying the drakon, which was ravaging the mortal world.

The House of Hades
Damasen is introduced to Percy and Annabeth by Bob (Iapetus). He heals their wounds and provides them with food to continue their quest. Annabeth, realizing that they need Damasen's help in order to finish their quest, asks Damasen to join them, but he refuses.