Do you know the secrets and the dark rumors of Hell and Heaven? The rich and famous Annaleesia de la Scarlet never thought she would ever get out of the hospital, with her sickness that was trying to kill her. Strange things happened when she sold her soul to the Devil's son, that no one knew ever existed, against her will, after an operation. She gets appointed a blood thirsty demon "bodyguard", Zirel that has been pulling out all of the show stoppers with his bad-boy attitude and his hot headedness; a demon who loves action with a mysterious past. Love sparks in this adventure with friends and newcomers, demons more over, but with who? A series of death running through the town, with every body branded with the same insignia; what's happening? Why is everything going to Hell after she writes her soul to live, away? Is it because of the secrets of the past dealing with her family tree? Annaleesia feels alone, no one knows what she is going through, or do they? Life and death surprises all and the fact of secrets and reasons of creation and damnation come to arise. Come discover them in the 1st of the Key to Hell : Key to Heaven Series.