There are a couple of wolves in this story, a real one and Wilbur Calhoun, former outlaw and gunman who just wants to live out his life in peace on his isolated ranch. But one winter day a rider shows up bringing trouble – and some secrets from the past – with him.
Frank Leslie is really Peter Brandvold, of course, so that means this short story is fast, brutal, and very well-written. Definitely a one-sitting read. I thoroughly enjoyed it, and if you want to read a fine Western yarn, I highly recommend "Old Gun Wolf".