Witch World: High Hallack Cycle by Andre Norton is an omnibus that conatins
The Jargoon Pard,
Zarsthor’s Bane,
The Crystal Gryphon,
Gryphon in Glory, and
Horn Crown. It has dropped to $2.99 at Kindle US. Not on sale at Kobo US, at least as of now, but worth checking later in the day if you prefer Kobo/ePub - Open Road price drops can appear later at Kobo than at Kindle.
Kindle US:
https://www.amazon.com/Witch-World-H...dp/B07GQLD8TX/