Hmmm...very good question. Cris listened as Kace and Emmylou shared their answers before he raised his hand to share his own thoughts.

"Professor maybe it's hard to tell the difference, since the Cold Ones were actual human beings before they died and were infected by that virus. Could it be that being buried in the ice and all, their physical outlook was preserved? So there's no obvious sign of decay," Cris paused to think.

"Maybe through some instinctual need for survival, they learned to blend in with other living human beings. Like that saying, the best way of hiding, is to be out in the open. No one would suspect that they were one of the Cold Ones until it was too late," Cris shuddered just at the thought of that possibly happening.

Was someone in here actually a Cold One?