No one knows how many Death angels there are, no one but the Father. Mostly, they don't reveal themselves except to those whom they are taking. But Samael is the "Severity of God" and an Archangel (though not the Archangel of Death), and everyone knows what he's about. It was Samael who waited to take Isaac once Abraham had plunged his dagger into Isaac's chest, and he was not completely pleased when given the Command to stay Abraham's hand. Also, he has a history with Lilith. There are whispers...
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