The Elves of Mount Fern by Katherine Creighton

The Elves are the dearest and most mischievous little people in all the wide world.

They live in Elfland, and Elfland can be found in every corner of the globe. They take up their abode on wooded hillsides, beside murmuring streams, or in deep, leafy forests. In the dead of night, when all the world is still, they steal forth from their dwellings and start on their merry midnight rounds. They dance in the moonlight on soft dewy lawns under wide-spreading trees. They visit their neighbors and friends among elves, and their neighbors and friends among men.