She was born to the title of Princess of the Darklands, she claimed to be so after Lord Vile stabbed her and threw her out of a window when she made an attempt of Melovent's life trying to earn the respect of the army. Her first appearance was when Valkyrie attempted to have a vision of the future where she sees Abyssinia after she made an attack on Roarhaven she was accompanied by Auger and Omen Darkly and Skulduggery Pleasant. She looks directly at Valkyrie as she's having the vision and says that she's "coming for them all". She was resurrected at Coldheart Prison using the life force of Mr Collup and Mr Rut (killing them), and some of Valkyrie Cain's (she survives). Abyssinia is seen laughing before Never teleports the group away.
It has been said that she enjoys killing and is good it, she has been shown to be ambitious. She is implied to be insane. She is completely devoted to her son, Caisson, to whom she was willing to sacrifice her own life to protect.
She is a Neoterric.
Absorbs Life Force: She does this to heal or to grow stronger
Sensitive: Abyssinia has the power to look inside one’s mind, and is capable of searching their memories and can at will alter those memories to a degree described by Valkyrie as both precise and elegantly
Skulduggery: Ex Lover
The Unnamed: Father
Darkland Army: Leader