Cougar — Helen V. Griffith

All Nickel wants is to play soccer with his new friends, and enjoy the feeling of being part of a family ... finally. But Robbo and his gang are there at every turn, provoking, taunting, bullying. It takes the ghost of a horse named Cougar and a mysterious bicycle with a mind of it's own to free Nickel from a violent past in this haunting middle-grade page turner.