The energy stone gleamed in the light but at the same time it didn't reflect it. Instead it greedily absorbed the much of it that was around it. The energy stone was. The most valuable thing he owned presently and he wouldn't let it out of his sight again. The stone looked like a crystal quartz with colors swirling inside it.
The substance it was made of could only be found the Sire's realm but he couldn't remember it's name. He only knew that it was capable of and that was the distraction he needed. It sucked energy from whatever came close to it. Excluding him and his brothers. The stone recognized them and never had any effect on them.
Only the mortal he had given it to knew of its existence but not for long. The mortal had happily lapped away at the blood offered to him, thinking only of the power that came with it. He was so used to receiving things that he didn't question the one who gave them. The blood was his last gift and with it, his grave was sealed.