9 books in series

Witch World Series 2: High Hallack Cycle

Witch World Series 2: High Hallack Cycle is a 10-book series with 9 released primary works first released in 1965 with contributions by Andre Norton and A.C. Crispin.

Horn Crown
Year of the Unicorn
Spell of the Witch World
The Jargoon Pard
Zarsthor's Bane
The Crystal Gryphon
Gryphon in Glory
Gryphon's Eyrie
Were-Wrath
Songsmith
The Gates to Witch World