The visitor turned to Campion and the Professor. ‘Strong men and true’, he said, smiling at them. ‘Of course, I understand, strictly speaking, my dear Albert, that “such days as the House of Gyrth may be in danger” are past. But I certainly agree with the Colonel that in the circumstances we might stretch a point in this — er — archaic formula. It seems the only courtesy, Professor, that we can extend to you for your tremendous assistance in this unfortunate and distressing affair.’