Magister Hanellin:
Do you remember when I mentioned the bloodless angels? There is something I must tell you... That wasn't exactly true. When angels return to heaven, their physical bodies disappear. During this process a large amount of pure water is produced... This is known as the "blood of an angel." It cannot be contained in any vessel, it must be soaked into a piece of fabric...
And although I cannot speak their names, even to you, there are many people who would do anything to obtain the "blood of an angel".
"Tell me more about the blood of an angel."