The Dolphin Riders - D. R. Dempster - Bog

Aliens escaping their dying world arrive on Earth, where they end up interacting with dolphins in a most surprising way.
The Dolphin Riders begins with the story of the destruction of a far-off planet and the resulting relocation of its entire population. The aliens are water dwellers, so they fit in well with Earth's dolphins, forming a most harmonious relationship. Everything on the planet changes for the better, as there are no more wars or poverty. The story of these extraordinary beings is told to a group of children by their great-grandfather, who was unexpectedly involved in their planetary migration.

(About the Author)
D. R. Dempster grew up in a small town named Tully in North Queensland, Australia. He has lived in Cairns and Townsville. "I joined the RAAF and stayed in for twenty-two years. Was posted all around Australia and overseas to Malaysia." The author retired in 1982.