Iron Tower Trilogy Series by Dennis L. McKiernan

Tuck Underbank is a Warrow -- think a hobbit with shoes and "large jewel-like eyes" -- living in the peaceful Boskydells. When an unnaturally cold winter strikes and the evil Modru threatens the world, he and a number of his fellow Thornwalkers go to the High King's aid. But a vast expanse of lightless blizzard called the Dimmendark (sounds bad, doesn't it?) is spreading over the land, and Tuck soon finds that the "dark tide" is going to swamp them all... moreTuck Underbank is a Warrow -- think a hobbit with shoes and "large jewel-like eyes" -- living in the peaceful Boskydells. When an unnaturally cold winter strikes and the evil Modru threatens the world, he and a number of his fellow Thornwalkers go to the High King's aid. But a vast expanse of lightless blizzard called the Dimmendark (sounds bad, doesn't it?) is spreading over the land, and Tuck soon finds that the "dark tide" is going to swamp them all. Despite the fact that they're tiny and temperamental, the Warrows get included in the military forces. But the High King doesn't have enough warriors to hold off the horde of slobbering monsters who are coming to attack. And the battle goes horribly wrong, separating the friends from one another and possibly dooming them all. less

The winter had begun.At Gunnaring Gap, the valiant Riders of Valon began their charge. And though Challerain Keep lay in ruins and butchery had led to the capture of Princess Laurelin, heroes strode forth from the ranks of Men, Elves, Warrows and Dwarves to turn the tide of doom. And across the land ruled by unnatural dark, freedom flickered and burst into flame...

The destined hour has come....It is the time foretold, when the Dark Liege Gyphon will return from exile to subdue all creation to his vile domination. In the Iron Tower, Modru works his magics to summon his implacable lord. And across Mithgar, the warriors of the kight are massing for their final assault on the Powers of Dark. Men, Elves, Dwarves and doughty warrows, their state is desperate but their courage is high. For if they fail, there comes the unending Darkest Day... moreThe destined hour has come....It is the time foretold, when the Dark Liege Gyphon will return from exile to subdue all creation to his vile domination. In the Iron Tower, Modru works his magics to summon his implacable lord. And across Mithgar, the warriors of the kight are massing for their final assault on the Powers of Dark. Men, Elves, Dwarves and doughty warrows, their state is desperate but their courage is high. For if they fail, there comes the unending Darkest Day. If they succeed, all will see the dawn of a New Age of legend and glory.....The Darkest Day less

Dennis L. McKiernan's Mithgar books are among the most beloved in all of fantasy fiction. The Iron Tower includes the first three novels set in the world of Mithgar -- collected in a single volume for the first time -- with an all-new introduction by the author.