The Six Proud Walkers
Young Geoffrey Carroll was on holiday in Italy when he was nearly run down by a fast walking man who proclaimed he was one of the "Six Proud Walkers". Curiosity would land Carroll in the middle of intrigue and mystery and get him kidnapped, pommeled, and nearly killed. When the strange Colonel Granby shows up and wants his help to stop them, Carroll is in too deep to say no. Told from the viewpoint of Carroll.