Ellie Sparrow's summer gets hotter by the minute! This adventurous 12-year-old girl just stumbled upon an ancient secret which spells a whole lot of trouble. Now she must fulfil an age-old promise as she becomes helplessly swept up in lives and events surrounding the Great Fire of London.Forced to live on her wits, Ellie will discover new friends and powerful enemies in the famous city of London. When the Great Fire catches hold, Ellie's world will shift again. Difficult choices will have to be made, choices that will lead her to the court of King Charles II. Can Ellie's presence be the key to saving the life of an innocent man?