John Rawlings has never been happier. His apothecary business is doing well and he is blissfully content with his charming wife and adorable little daughter. Little does he know that his settled life is soon to be tragically shaken off course.An evening out at an illustrious theatre party at Gunnersbury House, hosted by Princess Amelia, ends in tragedy when one of the most popular characters of the series comes to an untimely end. Suspicion falls upon John Rawlings when he is found crouched over the inert figure. Despite his protestations of innocence, many at the scene, including the royally powerful Princess Amelia, believe John is the murderer and he is forced to go into hiding. John and his closest friends desperately try to delve through the layers of deception to uncover the truth, whilst struggling to come to terms with their own grief.Countless adventures teach him it is not always easy to tell friend from foe and there are far more late night dealings at Gunnersbury House than he at first expects. But somewhere the vicious figure of the murderer is lurking and it is up to John to determine their identity before they strike again.