The expression is made by Watson on being shot on his thigh by ** Evans. When he got shot, Holmes led him to a chair and with great concerned asked him if was hurt. For the first time,. Says Watson, the clear hard eyes of Holmes were dimmed for a moment and firm lips were shaking. Watson says that it was worth a wound, worth many wounds, to know the depth of loyalty and love that lay behind that cold mask. It was no doubt a professional relation that Holmes and Watson shared. However, it had grown into a friendship that ran much deeper than it appeared. It was in this moment that Watson caught a glimpse of a great heart as well as of a great brain.