Whisper is a necromancer working for Doctor Nye as a sort of bodyguard. She stores her powers in a cloak and is a very skilled fighter. She wears a cloth mask over her face, coveringer everything but her eyes.
Whisper makes her first appearance in Midnight, where she works in a lab in the Alps as bodyguard to Doctor Nye. When Skulduggery Pleasant and Valkyrie Cain comes to arrest Nye, Whisper attacks them and succesfully shadow-walkes away with Skulduggery. She stops when Valkyrie grabbes Nye and threathens to kill him. Once a deal has been made, she shadow-walkes away with Nye, and through it all she never says a word.
Whisper stores her powers in a black cloak, which she wields with great skill, even impressing Valkyrie Cain. She is especially skilled in shadow-walking and her cloak can absorb bullets and slice through solid objects.