"Instead, there sat in Urish’s throne a fat, scaly thing of yellow and green and black. Brown bile dripped from its grinning snout and it raised on of its many paws in a mockery of a salute.
'Greetings,' it hissed, 'and beware - for I am the guardian of Urish's treasure.'
'A thing of Hell,' Elric said. 'A demon raised by Theleb K'aarna. He has been brewing his spells for a long time, methinks, if he can command so many foul servants.' He frowned and weighed Stormbringer in his hand but, oddly, the blade did not seem to hunger for battle.
'I warn thee,' hissed the demon, 'I cannot be slain by a sword - not even that sword. It is my Wardpact…' “
Michael Moorcock, The Sleeping Sorceress
Image artist: Michael Whelan