Black Snake in the House

I'm a little behind posting. Back in the beginning of March, we found a snake skin in our house, wrapped around some pipes in the basement. It measured over 5 feet long. Our guest bedroom is in the basement, but I figured what our guests don't know won't hurt them. We never did find the snake so we assume it made its way back outside. The other day while I was moving some bricks around outside, I found a small ring necked snake. It kept finding its way under the bricks so I had to gently nudge it with a stick. I've also found several salamanders hiding under logs and bricks recently.