Part comedy of errors, part Agatha Christie-esque murder mystery, fully enjoyable.

This YA fantasy novel involves a group of people called "rithmatists" whose 2-D chalk drawings come to life. Part fantasy, part murder mystery, entirely enjoyable.

I didn't know there was such a genre as Middle Grade horror, but after reading this, I'm glad there is! Spooky, fun, and very well paced.