corn snake digestion

Question
i have recently bought a corn snake, she was feed before we left the store, i have had her since saturday, she has already pooed out the mouse that she ate, there is a black mark where the mouse was in her tummy, will she poo again or is it something else, she was hiding in a very small spot in her log that we got, could she have brused herslef coming out of the hole.

Answer
I doubt it is a bruise. I also doubt that she will poo again until she is fed again. Feed her this Saturday and make sure that the rat is only as big as the biggest part her body (diameter). Do keep an eye on that spot and make sure it doesn't get bigger. I have seen snakes that have been fed improperly sized prey that bruise from the inside out, but usually this is very large and results in the snakes death (like within 24 hours).