Two broken heroes. One impossible rescue. No way out.

Weeks after the first Roosevelt treasure cache was discovered, the Grand Canyon is overrun by reckless treasure hunters--and someone just paid for it with their life. Dr. Meg Lewis was there when it happened. She had come to the North Rim to stitch up cuts and wrap sprains, not dive back into life-and-death medical drama. That world already cost her everything. But death has a way of following her.

Ranger director Noah Wilde, a widower, has spent years keeping everyone at arm's length, terrified that loving again will only end in grief. He's not about to let any more deaths happen on his watch. When a group of hikers goes missing in the Tapeats Cave system, Noah assembles a rescue team, with Meg as medical officer. But the hikers aren't alone down there. Someone else is in the cave. And they didn't come for gold--they came to make sure Meg and Noah never get out.

As floodwaters rise and the walls close in, Meg must find a way to keep the injured alive . . . and Noah must face the thing he fears most: that he's already lost his heart to someone he may not be able to save.

A pulse-pounding novel with heart-stopping cave rescues, medical drama, electric tension, and national parks. This romantic suspense will thrill fans of Irene Hannon, Lynette Eason, and Elizabeth Goddard.