43 - 17 - Dig in a Blink

<I did not understand it until now.>

<Good,> Jake said tersely. <Now dig.>

Before you could blink an eye, Ax shot down the tunnel.

<Okay,> Marco said. <So I was wrong.>

I held my breath, wanting to be sure he wasn't going to come racing back for a quick lunch. It was a good distance to where Ax was working, farther than you could see. But you could hear - no, you could feel - the sound of digging. A high-pitched, far-off ringing. The sound of teeth scraping dirt. Of dirt being devoured.