Answer: He worries that he will be blamed if Ghost Wind does not get well
Step-by-step explanation:
Willie’s viewpoint in this excerpt is that "He worries that he will be blamed if Ghost Wind does not get well".
In the excerpt, Willie explained that he's worried that the stallion’s right foreleg may not heal. He was worried that he'll be blamed and if the horse doesn't get better and further stated that it was the fault of his son and that he'll be dealt severely with if the horse doesn't heal.