X-link to the Kids/YA megathread since Clare Bell is a dedicated YA sf/fantasy author and this particular series of hers was one of my childhood favourites from the school library which helped turn me onto sf/fantasy reading in the first place:
Bargain @ 99 cents for today only (Nov 13th) from Open Road Media in multiple Canada & US stores (couponable @ Kobo):
Ratha's Creature by Clare Bell (
ISFDB,
Wikipedia), 1st in her The Books of the Named series of YA fantasy adventures set amongst a clan of intelligent pre-historic cheetah-like big cats, this installment originally out from Atheneum in 1983 (and involving the discovery of fire).