For ages 8 and up In the second installment of the Sidney Sinclair adventure series, Sidney and her friends head off to Camp Sycamore Streams. On the first day of riding camp, Sidney spots a mysterious rider in the woods. Could it be the ghost of William Kitt, the bank robber who supposedly hid his stolen treasure at Sycamore Streams? Sidney and her friends are determined to find out, even if it means missing out on a few camp activities. The campers team up with their camp counselor, Kelsey, and an old, grizzled riding instructor named Johnny to find Kitt's hidden treasure and solve the mystery of the shadowy rider, deciphering riddles and finding adventure along the way.