I Saw an Ant on the Railroad Track by Joshua Prince

Tickity Tack. That's the sound of an ant on a railroad track.

Clickity clack. That's the sound of a train on the railroad track.

What will switchman Jack do?

In this book, cleverly illustrated by Macky Pamintuan, Prince has out-rhymed himself with the ant who is looking for a snack while walking down the track oblivious that he and the train might smack into each other. 

I enjoyed this simple story full of toddler-appropriate suspense.