I read most of the Dumarest series last year. I found "Toyman" hard to get through, but the fourth book, "Kalin", was outstanding and hooked me on the series. It's a pretty rewarding series if you stick with it. The biggest problem is E.C. Tubb's writing style. He was an author with a unique talent for taking a well-plotted, exciting story and telling it in a dull and unengaging fashion.