When Becky is accused of stealing a rare book from the library she and hertwin brother set out to catch the real thief and prove her innocence. Soon thetwins re... » 

When Becky is accused of stealing a rare book from the library she and hertwin brother set out to catch the real thief and prove her innocence. Soon thetwins realize that the soultion to the mystery leads to a secret treasure Canthey figure out the puzzle before the thief does? «