It was Friday morning.
Noelle Trocoderro and Todd Sloan were walking to school.
When they turned a corner, they saw the sheriff's car parked in front of Mr. Roper's grocery store.
"Let's check it out!" Noelle said.
She and Todd started running.
Noelle was always looking for mysteries to solve.
Their teacher, Mr. Merlin, called their class the Third-Grade Detectives.
Just as Noelle and Todd reached the front of the grocery store, the sheriff and another man came outside.
The sheriff was carrying a big box.
"I'll teach you to steal from me, Roper!" the man was shouting....