SIENNA We had been running toward Hasten Rock for what felt like forever. The snow was coming down harder now, driven sideways by increasingly violent gusts of wind. The temperature had plummeted, and every breath I took felt like I was inhaling shards of ice. There was no doubt about it. A serious snowstorm was coming. And I had a horrible feeling we were about to be caught in it. I glanced towards the dark sky. If we didn’t finish this treasure hunt soon, we’d be dealing with a whiteout. “Okay! Hasten Rock is just over the next ridge!” Hayden shouted from the front of the group. “How many clues do we normally have to find?” Sean called out. “Four or five,” Troy answered. “Hopefully it’s only four today,” Hayden said. I said nothing. But I silently agreed. I didn’t want to s

