There's Another Cat in the House?

The weather has been a little warm lately, so Kyle and I opened up the backyard door. However, we didn't notice the screen door was also open.

About an hour later, Kyle noticed a black cat in our house. Then he asked where our cat was. We both got up and went out back and called her. We then hear a "jingle, jingle, jingle..." growing louder as the cat approached our house. The black cat was on the patio.

Later the cats started crying to each other through the screen door. When the cries turned to howling and hissing, Kyle tried to close the patio door and the cat got mad and freaked out. Needless to say, someone was on a time-out tonight.