Verner wrote History and Campaigns of the Rifle Brigade in 1912. In 1917 Breuil returned and he and Verner were warned off their next investigation of Devil's Tower Cave in Gibraltar by a local policeman (but not before they had retrieved some Neanderthal tools). Their final visit to the cave was in 1919 and they were convinced that this was another home to early man like the earlier finds at Cuerva de la Pieta and at Forbes' Quarry Cave, Gibraltar 1 had been found over fifty years earlier. Their confidence was confirmed when Gibraltar 2 was found nearby in the early 1920s by Dorothy Garrod who had come to investigate at Breuil's encouragement.
