The photos were blurred, but I would recognize Zac's figure even if he were reduced to ashes.

The voice on the other end continued, "Also, the toxic gas samples the police collected were analyzed by the research institute and Zac's signature is on the report. We need more time to investigate, but we suspect that Zac and Carmen intentionally released the gas and the research institute covered it up."

My heart sank lower and lower, my face a mix of tears and a bitter smile.

Yes, that cave was a popular spot for hikers. How could there have been toxic gas only when they went there? How could they have entered so quickly and been unable to get out? How could I be the only one so badly burned while they were completely unharmed?

All the clues pointed to one thing—Zac had released the gas himself. He had no intention of returning to celebrate my birthday that day and made a lousy excuse about being trapped. He didn't expect me to love him so much that I'd risk everything to save him.

Memories and reality blurred as Zac's concerned face appeared before me. He gently held me, softly stroking my back. "Liz, why are you crying like this? Did you have a nightmare?"