It was stuck. Stuck helplessly under the rock. Emma struggled and squiggled trying to free her arm. Toms face darkened as he got an idea. The idea was horrifying, but it was the only option. He explained to Emma that the only way out was to cut off her arm with a sharp rock, then cut the rope and escape. Emma seemed reluctant and mortified that her brother would think of something like that but surprisingly agreed. Tom braced himself and Emma and..THWACK!!