Phantom Stallion #2: Mustang Moon

Sam and the mysterious mustang known as the Phantom have become friends, and Sam is determined to defend his freedom on the open range. But the mustang has been accused of stealing tame mares from local ranchers. Sam knows the Phantom isn't to blame, and she races to prove his innocence. 

Then, a local rancher offers a reward to anyone who can capture the wild stallion. A price on his head means it's not just the Phantom's freedom Sam is fighting for — it's his life.