Used book – Sheltie and the School Fair, Peter Clover

The school fair is coming up soon. Emma is actively involved in the preparations. Everything is going well. But it's a shame that the new school caretaker, Mr. Grimley, isn't more friendly! He's a strange character! He forbids anyone from approaching his toolshed, located at the back of the yard. What could he be hiding in there? Emma and Sheltie are determined to find out...