"Help!" Riley screamed into the stifling blackness, tears streaming down her cheeks.

She knew she should preserve the precious fluid, but it wouldn't matter if she was going to die anyway. She'd been hallucinating and cooking for what felt like ages in the hot, dark trunk. She banged on the lid and yelled until she was exhausted and weak once more. She took another desperate gulp of water and pinched herself in an attempt to keep her eyes open. She knew she couldn't pass out again. She ...