It always confused me why Jessi and Mallory only had one mystery each. After some lengthy discussion on the top at the BSC boards, I finally found the answer. Jessi and Mallory, at eleven years old, were simply too young to participate in any of the dangerous crime-solving that the much older thirteen-years-old sitters were doing. Even in the Super Mysteries where Mal and Jessi have chapters, i can’t recall them doing any real stakeouts or anything–just keeping the mystery notebook up to date or doing some library research. Despite the total disregard for safety throughout this spinoff, such as the fact that even when someone tries to burn someone’s house down Claudia doesn’t bother to tell her parents about the scary stuff that’s happening to the BSC, at least they left the young’uns out of it.