Montgomery Bonbon

Bonnie Montgomery is the world’s greatest detective. Not that anyone—other than Grampa Banks—has heard of her. But they will have heard of Montgomery Bonbon, the gentleman detective with the bristly mustache, fashionable beret, and accent that’s hard to place. Montgomery Bonbon is responsible for solving many high-stakes crimes, including unmasking the Emmental Bandit, restoring the Rusakova diamonds to their rightful owner, and busting an international owl-smuggling ring, resulting in the arrest of over twelve owls.

Many people go their whole lives without noticing anything that is afoot, amiss, or even untoward; without ever experiencing that toe-tingling, stomach-twisting sensation that a mystery is about to unfold. Not Bonnie Montgomery—the world's best detective. Not that anyone (other than Grampa Banks) has heard of her… But they might have heard of the great Montgomery Bonbon, the well-dressed gentleman detective who (apart from the hat and moustache) looks suspiciously like a 10-year-old girl.

When Bonnie Montgomery finally gets a break from cracking cases as her alter-ego, Montgomery Bonbon, something terribly fishy happens the moment she and Grampa Banks arrive on Odde Island for half-term–and it's not just the smell of the harbour. There's been a mysterious death at Leerie Lighthouse, and what everyone assumed was an accident is setting Bonbon's moustache all a-quiver: a sure sign that something is Highly Suspicious.

Bonnie Montgomery is finally getting a vacation from cracking cases as her alter ego, Montgomery Bonbon.But something terribly fishy happens the moment she and Grampa Banks arrive on Odde Island—and it’s not just the smell of the harbor. There’s been a mysterious death at the lighthouse, and what everyone assumed was an accident is setting Bonbon’s mustache all aquiver: something is Highly Suspicious. When a second death takes place, Bonnie is sure the two are connected. But can she solve this case alone, or will she need double the detectives to solve double the murders?

Bonnie Montgomery (as her case-cracking alter-ego Montgomery Bonbon) has been invited to Adderstone Manor by Fergus Croke, whose prized diamond has gone missing. Croke is a retired master thief who suspects one of his four protégés of the dirty deed – but when everyone is a crook, how does even the great Bonbon know where to begin?