内容简介：
When Toby and his round-faced companion, George get caught in torential rain one night, they are surprised to find that they are not the only ones out in such a fierce storm. It seems that Edgar Prees, an aging botanist of prestige and reputation, is attempting to commit suicide by jumping off a cliff-top. The two men drive Edgar home, collapsed and shaken. When he is found the next morning - shot to death with his own revolver - it seems that his attempt at suicide has succeeded. But as Toby and George are thrust into the case, it becomes apparent that suicide is not always as simple as it would seem...