They were told to keep a watchful eye on the suspected ones, though there was no time to explain just why. But, after all, there could be but one reason for giving this warning, and Skinny, as well as the other leaders, were able to figure it out. They had already guessed that news had come concerning a contemplated foray on the part of rustlers and that these men were suspected of being hand in glove with the lawless night runners of cattle.