You know, perhaps its because i ran afoul of a long string of crap of late, but this book was surprisingly not too sucky, especially for 1970. There are plenty of warning signs on the cover: Published by Lancer, makers of "quality" swill, sides of the pages dyed purple, which is always the worst color, the back cover promises post-apocalyptic barbarian-fi, with old technology being unearthed from the past, and that almost never goes well, And look at the cover painting. Look at the muddy, anatomically challenged piece of hackery.
And our hero is called, "Broon", or "the Broon", and maybe twice the titular "Kelwin" (This is never explained.) His side kick is a apprentice, named "Base" The other review with a plot synopsis is accurate, so I wont repeat it here.
But, surprisingly it was fine. Far, better than it should have been. Its well written enough, (like 20% better than you'd expect) the plot is mildly complex and doesn't use the usual plot devices, things in the end, make sense. Its more of a political intrigue/mystery plot than anything else. The characters, are a little thin, but at least the conversations between the B & B duo are mildly entertaining, and they aren't as thin as the usual fantasy book of this era. The world, makes enough sense, and is reasonably fleshed out. And the ancient unearthed technology doesn't end up being insulting, or unrealistic. It had a few teaspoons of style sprinkled throughout.
Look, this book isn't fine literature, or have anything deep at all (at all..) to say. But for its genre and time period, its well above average. It didn't inspire any hatred/bile/sarcastic marginalia from me, and that is saying alot. So, if you got a 3 hour bus ride, and see this in used book store beforehand, its not a bad option.