Clearly the Old One had the capacity to kill - or easily deliver some sort of final ending that sounded remarkably like death.
Garth NixHear, hear," said the Dog, raising her head. "It's always better to be doing, Prince. Besides, you don't smell like a coward, so you can't be one.
Garth NixI suppose you could call me...Soot," said the thing. "Yes...Soot. I have breathed it, lived in it, and eaten it for so long that it is a fitting name." "Eaten it?" asked Suzy. "Why eat soot?" "Boredom," said Soot.
Garth Nix