Wind rider

"A madman has driven Mari, Nik, and their Pack from the only home they have ever known. He will stop at nothing until they are obliterated from the earth. Mari knows their only chance for survival is to reach the plains of the Wind Riders, a legendary people known for their bond with their remarkable horses and their unmatched riding abilities. Driven by love and unshakable determination, Mari and her Companion, Nik, chart a perilous journey as they seek safety and sanctuary"--Dust jacket.