My favourite Fantasy trilogy, The Goblin Trilogy by Jaq D. Hawkins is on sale for 2.99!
US
https://www.amazon.com/Goblin-Trilog.../dp/B00MGIAXE2
UK
https://www.amazon.co.uk/Goblin-Tril.../dp/B00MGIAXE2
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Dance of the Goblins
The goblins lived unseen by man for many generations and were forgotten, consigned to legend, but a fluke sighting when a man wanders into the entrance of a forgotten underground transportation system revives an ancient war between the species, originated by misunderstanding and prejudice of a species which appears alien to the superstitious humans.
Demoniac Dance
A young girl running away from an unwanted marriage finds a new life among the mysterious magicians in the land across the river. What she didn’t bargain for is the presence of the goblins who have befriended her benefactors.
Power of the Dance
Khemael is a creature of beauty and grace with a mostly human appearance. His love of stretching his leather-like wings and flying freely in the world of men brings far too much attention to the existence of the goblins. Haghuf knows that the inevitable responsibility will fall to him to destroy Khemael who, in the world of the humans, would be called his grandson."