The Angel of Death

"'Beware those who have wronged me for I have returned with vengence' Angel announcement to the camp"The Angel of Death is a Half-Blood that is said to be from the beginning of camp half-blood who was imprisoned by the gods, for killing fellow campers, in a place beyond life and death. He has returned to Camp Half-Blood in the aftermath of the Battle of Manhatten to Punish camp half-blood for locking him away

History
According to legend Death felt pity for a woman who was on the verge of death and saw the potential that she had to live for and the union of the two brought the birth of the Angel. In the story, he needed to kill other campers in order to stay alive and was imprisoned for it but doing so outwitted or defeated 11 of the Olympians. Since then he has been forgotten as being an actual person and has been remembered by the campers as a ghost story. However, he broke free from the prison sometime before the Battle of Manhatten in some mechanical prison that a Hunter of Artemis had also broken into for unknown reasons. Sensing the Prison's destruction he left the young girl in there to die as the prison. Later he met up with an unknown individual named Robbert and persuaded him to get revenge on Camp-Halfblood promising him Justice for what had happened to the both of them. He then goes into infiltrating the camp during a game of capture the flag and then killed the Huntress named Jennifer and her fellow huntresses as well as Trevor Munch and injuring the Adult counsolour Chris Mckennel. Then Leaving a note behind taking responsibility for the murders and as a warning to the rest of the campers that he is out there making even Chiron feel fear. He has since retreated to the camp's forest to raise the creature known as   Asterion and from the ground. Then using unknown magic, he was able to watch a campfire ceremony when Chiron talked about the events that had transpired and then encourage the campers to call for a quest into the forest of camp half-blood giving them false hope that they can defeat him believing that no prophecy can defeat him.

Hand to Hand Combat
The Angel is shown to be a master at hand to hand combat as shown by killing 5 Huntresses at once and his skills are comparable to Annabeth's

Magic
The Angel is seen to have some Magical abilities but the extent of which is unknown. He can seemingly teleport with great ease as well as using magic to view and mingle from an unknown location. He is also able to summon monsters straight from Tarturas.

Bow and Arrow
The Angel has fired a Centaur Blood dipped Arrow from a distance striking young Trevor Munch in the chest causing him to die in agony. Showing skill with the weapon's, it is unknown how he received the bow

Robert
the individual known as Robert is the Angel's accomplice and the two seem to have a sort of student and master relationship as the former is alway referenced as such. The two have seemed to share the sense that Camp Half-Blood is guilty of something and both are willing to destroy it.

Jennifer
According to Chris the Angel had asked if Jennifer remembered him implying that at one point the two have met. The Angel has also declared her to be guilty of something and for that, he decided that she needed to die and suffer at his hand.

Hunters of Artemis
The Angel Carries a hunter's bow suggesting that he had met the Hunters once before he was imprisoned. He declared that all Hunters are his enemy showing the unwillingness to save the one who broke into the