Dwarves are waist-high, stocky men and women who were homespun clothing, these creatures live underground at Fablehaven and prefer to keep to themselves. It's sometimes tricky to distinguish male and female dwarves because women dwarves have whiskers and are known for their unladylike manners.
It is believed there is a magical dwarf among the colony at Fablehaven. His identity and intentions remain questionable.
Grip of the Shadow Plague
Some dwarves took refuge around the pond which surrounded the Faerie Queen's shrine during the shadow plague. Dwarves are among the creatures that got affected by the shadow plague. Seth thought they were male but upon closer look, the dwarves there appeared to be female.
Later they assisted in the final battle between light and darkness that was led by Patton.
Secrets of the Dragon Sanctuary
A male dwarf named Zogo was riding a griffin and he kidnapped Seth, Tanu, Trask, Gavin, Dougan and Mara at Wyrmroost with the help of a fume of griffins and took them to the sky giant Thronis. He was a stocky little dwarf who belonged to Thronis, the Sky Giant. He commands a pride of Griffins. He carried a short sword and a battered shield emblazoned with a yellow fist and wore a dented iron helmet over his head - all indicative of his experience in battle. His bronzed skin, black eyes, and stubbly beard added to his hardy appearance.
Rise of the Evening Star
A dark hooded dwarf is one of the creatures guarding the artifact in the Inverted Tower, but he never makes a physical appearance.