Kashallan Alliance. Tales of the Kashallans, #7

Phillip thought of himself only as a scientist. When he took on a Khutani symbiote he became a kashallan, to communicate for these great beings among all the races of the world Timorna. Now he's a respected leader on a mission to cross the Shallow Sea. With his young symbiote Yoey, Phillip must form alliances among warring clans in preparation for a dangerous future. Not all the clans agree, and the demon Tessa carries has its own agenda. Even the Khutani are not of one mind about what shall be done. Kashallan Alliance is the seventh book in the series Tales of the Kashallans, by celebrated author Celu Amberstone.
Drawing on her Indigenous and Celtic heritage, Amberstone writes powerful fiction subtly different from the usual science fiction or fantasy adventures. For fans of the 'Hundred Worlds' approach used in Star Trek and in Golden Age magazines, there are diverse settings and cultures along the journey taken by these human and alien characters. "This is space opera writ large combined with both fantasy and hard SF...
It's obvious the Tales of the Kashallans constitute a genuine epic written with such skill that you will be enthralled however long the series lasts."This is a richly detailed fantasy/space opera that is positively addictive. Celu Amberstone has the knack of weaving elaboration and action into a vivid tapestry of action and character. Well rounded, deftly written, and a joy to read. Highly recommended.
Consider it a useful antidote to mundane life these days... a genuine pleasure you owe yourself."-R. Graeme Cameron for Amazing Stories. "Amberstone's world-building puts together brave new peoples and gritty adventures, evoking strong responses in the reader."- author Paula Johanson