Fantasy fiction about talking Golden Retrievers

Delightful and dark, I am enjoying the first novel in Katherine Applegate's Endling series.

When I saw the cover and read the description, I knew I had to give Endling a try. Applegate's "dairnes" are the most ridiculous and snuggly large dogs around, similar to the Golden Retriever. Byx, the presumptive last of the dairnes, finds themselves adrift after…