ARC: The Acres Series, #3

Alicia's mind-traveling has shown her a hidden world under the acres with walls lined floor to ceiling with crystals. Deep in that glittering dark, Russell and Abigail have made their own path through the cave with a lantern, a pocketknife, and the stubborn courage. At the safety, Alicia watches the adventure unfold from inside her ancesters' minds, helpless to intervene but unable to look away.