2.5
Overall, this wasn't bad, and it obviously kept my interest. However, there were some interesting proofing errors - words that didn't belong; missing words; and, most commonly, two pronouns for the price of one. Also, some odd word choices - why would one use hotness when we have heat available?
It did really bother me when Roan, their very best tracker, managed to not smell something on a couple of very useful (for the plot), but completely unbelievable, occasions.