It appears in your window every night, a mysterious configuration of lights that hovers for a moment, then is gone. You don't dare tell your Aunt Vivian or Cousin Pippa. Surely they'll laugh. But Pippa pries the secret from you and doesn't laugh. Instead, she gets out her notebook and declares it the next mystery she wants to solve. It's your most difficult mystery yet, and your cousin needs your help to gather clues. You choose where to search and in what order to discover the clues. See if you can crack the case before she does!

You and Pippa can read the handwritten journal, given to you by your grandfather, but when your Aunt Vivian looks at it, she sees only blank pages. It's another mystery for your cousin Pippa to solve! As always, YOU decide where to go in your small English village. Do you want to visit your grandfather in the care home first, or see if another friend your age can read the journal? You decide in what order to investigate the clues. See if you can solve the mystery before Pippa does.

Your cousin, Pippa, cannot find her wellies. She'll need those rubber boots the next time it rains, and so she must solve the mystery of where they've gone. She'll want YOUR help to decide where to look and how. See if you can figure out how someone would sneak up to the cottage and swipe a pair of wellies without being seen. More importantly, who would do such a thing? See if you can solve the mystery before Pippa does!

It took your cousin, Pippa, months to save up enough money to buy a video game, and now it won’t load. You’ve convinced her to see it as a mystery, not a disaster, but it wasn’t easy, and the internet and the game company offer no help. Did the game break on its own, or did someone break it on purpose? Who among your friends might have wanted to hurt Pippa this way? Pippa will need you to decide which clues to examine and in what order. See if you can solve the mystery before Pippa does!

"I hear you're quite the sleuths." Nils's mother is onto you and your cousin, Pippa. She knows that you are good at solving mysteries, and now she has a new one. Who is stealing Nils's lunch every day? Pippa needs your help to discover all the clues. You decide where to look and when, and once you have done your investigation, see if you can solve the mystery before Pippa does!

Can you solve the mystery? You're an orphan (well, maybe not in real life, but in these books you are) and you've gone to live with your Aunt Vivian and cousin Pippa out in the country. Their house is in a small village surrounded by lush forest and the two of them welcome you with open arms. But you have a secret that you've never told anyone. There's something about Pippa, though. She seems to know your secret already. When someone ruins the main corridor of your new school, tearing down paintings and spilling paint everywhere, Pippa is determined to learn that secret, too. She sneaks into your room at night and asks you to go to the school with her to crack the case. To solve it, you must collect four clues, and Pippa will follow YOUR lead. You decide where to explore in the darkened school; you decide which order to uncover the clues. Do you think you can solve the mystery before Pippa does?