Klaus was struck dumb when he saw the two ladies on the bed.
Back in his 9th incarnation, when he was banished into the Forest of Anarchy to die, he surprisingly awakened his bloodline when he was on his last leg.
Back then, during the awakening, millions of beasts sensed the uniqueness in his blood, so they came running, aiming to devour him.
The first two to arrive were the black-haired and red-haired Immortal Phantom Cats.
They were on the run back then after terrorizing a planet full of beast hunters. When they sensed Efad's bloodline, they came running.
Initially, they wanted to devour him because they sensed the uniqueness of his bloodline.
However, when Efad begged them to let him live long enough so he could get his revenge on the Elven Council before devouring him, they found pity on him, so they instead gave him a new deal.
He was to give them a few drops of his blood every week, and they would protect him and ensure he got his revenge.