Elf Quest/WMG

Bearclaw's wolf Blackfell and Fell from The Sight are the same wolf
Big black loners with similar names?

And in the second book, everyone says that Fell looked a lot younger than he should. A little palace-related interdimensional time-travelling is probably how Fell spent the time between the two books.

Jink is the daughter of Skywise and Timmain
She inherited her father's libido, her mother's shape-changing, and the silver hair from both.