it 's fifteen steps , maybe twenty till we can disappear over the edge- we run like we 've spent the last two weeks resting- pound pound pound against the road- i check back over my shoulder- to see aaron try to take the rifle in one hand- try to balance it while keeping the boat steady- it 's bouncing in the rapids , knocking him back and forth- `` he wo n't be able to , '' i yell to viola .