Katie's peanut butter and jelly sandwich is missing, so she must figure out which of her classmates ate it--and what she should do about lunch.
Valeria Petrone Book order






- 2024
- 2023
Katie Woo and Pedro are hot on the trail of a treasure map. But as it catches in the breeze, it keeps disappearing on them. Will they be able to nab the map and will it lead them to real treasure?
- 2023
A frowning scarecrow at Aunt Carmen's farm frightens Katie until Pedro reveals that it is not haunted.
- 2023
After learning about mummies in class, Katie decides to make one of her own, but when it suddenly goes missing, Katie and Pedro start following clues that they hope will lead them to the missing mummy.
- 2023
Katie and Pedro are enjoying a night of camping, but when it gets dark and Katie starts to feel nervous, her father reassures her it will not last long, for tonight the Moon will be particularly bright.
- 2023
Katie, Pedro, and their mothers are going canoeing, but when the two canoes get separated Pedro gets worried that something has happened to his friend.
- 2022
Katie's new puppy, Koko, has run away, and now the white doggie is lost! Pedro and Katie pair up to investigate. They are hot on Koko's trail, but some clues lead nowhere. Still the detectives won't give up. After all, solving this mystery is the only way to bring Koko home!
- 2022
When Pedro and his dad walk Katie home on a foggy night, something smelly fills the air! With their noses working extra hard, the two friends have a mystery to solve: What is that making that terrible stink, and why is it following them?
- 2022
Katie's birthday is coming, but she wants to work out what her present is. She and Pedro decide to investigate ahead of time. Following her parents on some errands, they collect clues like real detectives. Will the clues lead to her birthday gift?