Double Detectives Medical Mystery: The Cure for a Crime

Twins Ali and Tulip have grown up with a surgeon mother and so have picked up lots of knowledge of first aid, medicine, and the ways of the hospital-they even know where the secret biscuit drawer in A&E is. When their mother becomes unnaturally sleepy and forgetful, they become suspicious of her new boyfriend. With help-and a watchful eye-from their mysterious wheelchair-bound gran, they set out t...