Cambridge, September 1919Orlando Coppersmith should be happy. WWI is almost a year in the past, he's back at St. Bride's college in Cambridge, he has his lover and best friend Jonty Stewart back at his side and--to top it all--he's about to be made Forsterian Professor of Applied Mathematics.With his inaugural lecture to give and a plagiarism case to adjudicate on, Orlando's hands are full, so can he and Jonty afford to take on an investigative commission surrounding a suspected murder? Especially one which must be solved within a month so that a clergyman can claim what he says is his rightful inheritance?The answer looks like being a resounding "no" when the lecture proves almost impossible to write, the plagiarism case gets turned back on him and Jonty (spiced with a hint of blackmail), and the case surrounding Peter Biggar's death proves to have too many leads and too little evidence.Orlando begins to doubt their ability to solve cases any more, and his mood isn't improved when there seems to be no way of outsmarting the blackmailer. Will this be the first failure for Coppersmith and Stewart? And how will they maintain their reputations--professional, private and as amateur detectives?