An 8th grader in Mr. B's class plagiarized their paper! Adina's Deck takes the case. In this who-done-it, there are four main suspects, and the club needs to investigate each of their alibis to help Dave get the grade he deserves. Who did it and why?

Michael, an 8th grader approaches Adina's Deck with a big problem. His friend Ally has been talking to a guy online for over two months and it seems too good to be true- except the guy is 20! The club takes the case to track down Ally's mysterious crush.

When Skye is cyber bullied, her best friend Melody approaches tech-genius Adina for help. Who would do this to Skye? And Why? At this Silicon Valley school, texting is more than meets the eye. Adina, Skye, Clara and Melody form a club and take the case.