Though they took place in a world similar to Howard's Hyborian Age, the tone of the stories is quite different. The characters are less brooding, more thoughtful, and generally have more fun. Leiber's style, while less poetic than Howard's, is more accomplished, and more complex. It makes you pay close attention, but is worth the effort.
The series has a weird and complicated history. Created sometime in the '30s by Leiber's college roommate, Fafhrd the northern barbarian and the Mouser, the cunning ex-apprentice of a wizard, made their debut in the pulp magazine Unknown in 1939. After a few more Unknown stories in the '40s, they appeared in a couple other mags in the early '50s, then took a break until the Gnome Press collection Two Sought Adventure was published in 1957. This brought a resurgence, and they made the jump to the digest mag Fantastic, which became their home in the '60s. By 1970, there were the five volumes I mentioned earlier, with a sixth following in 1977 and a seventh in 1988.
This first book contains three novelettes. First we meet young Fafhrd in his homeland and discover why and how he leaves. Then the wizardling Mouser, then called "Mouse," as he avenges the murder of his wizard. Finally, the two meet my chance in the dark city of Lankhmar, and begin their long partnership in crime and adventure.
The whole series is now available in ebook form, which I'll likely take advantage of. Some of my old pbs, nostalgic as they are, have cracked spines, deep, shadowy gutters and type smaller than my old eyes like.
