Tillu and Kerlew
From PlentyWiki
Tillu and Kewlew are the protagonists of the Megan Lindholm books The Reindeer People and Wolf's Brother. The books were originally written as a one-part story with the working title "Herdlord's Healer", but edited to be published in two volumes because it would have been too thick as a paperback. A one-volume edition of their story was later published under the title A Saga of The Reindeer People.