After the sensational success of "Glennkill," the new animal mystery by Leonie Swann! Dr. Augustus Huff, a lecturer at the famous University of Cambridge, suddenly has a problem: one of his students has fallen to his death. Was it just a tragic accident or murder? Augustus suspects the latter, as the victim was anything but an angel. A murderer in these venerable halls - that cannot be allowed, so Augustus, with the help of Gray, the deceased's gray parrot, sets out to find the culprit. However, the bird proves to be a cheeky creature, and at first, Augustus stumbles from one misstep to another. But soon it is Gray who asks the right questions, and Augustus realizes: only together can they crack this tough nut of a case!.