Harry Banner in Here and then Gone

Southbury, England. . .sometime in the 1930s When human remains are found on a building site there is sufficient evidence to determine that the deceased was murdered and that the victim's name was Graham Farmer, who had been reported missing some twenty years before. Graham's father, Edward, hires Southbury's most infamous Pi, Harry Banner, to find out what happened to his son. Harry had been having a lean time of it with just the odd cheap mundane case to work on. He had even been playing his beloved Lafayette trumpet in the band at The Blue Bay to earn some extra cash. He took the case despite a cold trail and only tentative leads