Cirrus@Austlit

'An unknown assassin is at work in London: five persons have already met their deaths—treacherously, mysteriously. An anonymous letter defies Larose to unmask the cowardly criminal. Gladly does Larose accept the challenge and, by dint of brilliant deduction, the master detective finally runs his quarry to earth.

'Gilbert Larose is one of the best-known figures in modern mystery fiction—a character, as one critic put it, "clever enough to compel admiration and human enough to carry conviction."

'This new novel is in Arthur Gask's most inspired and thrilling vein, endorsing yet again the Sunday Mercury's tribute that he "knows all there is to know of how to write a good mystery story."'

Source: Publisher's blurb.