The Riding Club Crime is the 172nd volume in the Nancy Drew Mystery Stories series of books.
[1] Nancy, George and Elsa are enjoying a horse ride, when Nancy's horse falls into a hole while attempting a four-foot jump over a post-and-rail.
Elsa is a counselor at Green Spring Pony Club summer camp, which has been vandalised by unknown persons.
As more incidents happen, the more Nancy realizes she has to work quickly.
This article about a mystery novel for children first published in the 2000s is a stub.