I wiped the sweat from my forehead as I hiked up the steep trail, my backpack heavy on my shoulders from the overnight gear.

  

  I'm Sarah Jenkins, twenty-eight, out here in the national park for a solo camping trip to clear my head after a bad breakup. 

  

  The sun beat down hard, making my tank top stick to my skin, and my shorts rode up with every step. 

  

  I had been walking for hours, enjoying the quiet, but now the path got narrower, the trees closing in thicker. 

  

  That was when I saw a guy stopped by a stream, filling his water bottle. 

  

  He was tall, muscled arms flexing under...