Recovering from a broken leg after his ignominious fall from the Titanic, Scotland Yard's Superintendent Lestrade goes to convalesce at the home of his betrothed, Fanny Berkely, and her father, Tom, Chief Constable of the county of Surrey.. "It should have been a peaceful time - apart from Lestrade's lack of dexterity in steering his wheelchair - but an attempt on the life of his future father-in-law makes him realize that a policeman is never really off duty. What is even more puzzling is the arrival of a letter that simply reads "Four for the Gospel Makers" - and it isn't the first Lestrade has been sent.. "So begins one of Sholto Lestrade's most mystifying cases, a case that encompasses not only the present but the past. Lestrade walks dowm Memory Lane to the time when he was a young and very naive constable. He looks back on episodes in his career that never came to satisfactory conclusions and that hold other clues as to who the sender of the letters is - because whoever it is, is a cold-blooded killer.