"Your brother left the hotel two weeks ago. We have heard no word from him . . . "Travel in Alkali Valley, as you know, is dangerous. We think you should be informed of his continued absence. " That was the letter that brought Ben Trainor to a godforsaken spot in the desert. And a warning from the sheriff to leave while he still had the chance only deepened the mystery. But with the help of his good friend Jim Silver--Silvertip--Trainor was determined to find his brother, even if they had to shoot their way past all the bushwackers in the valley!