Lucas
Troubadour
Do you happen to know of any fantasy world which displays technological evolution between books in a series, and portrays a fantasy world emerging into 20th century technology?
The old "Keeper of the Flame" series (about a bunch of RPG players who get sucked permanently into the fantasy world they're playing) had them start out participating in the fantasy realm, but then they started introducing the modern technologies (gunpowder, electricity, etc.) into the fantasy world, which ended up being hugely disruptive and starting wars.
Definitely good; it's Guardians of the Flame by Joel Rosenberg. Also (although it's time-travel without fantasy, but much more tech) the Cross-Time Engineer series by Leo Frankowski.