Kally, This is great news indeed! Sounds like she most likely got out (maybe a loud noise scared her?) rather than having been stolen. I would certainly think about keeping her in the house unless you can be outside with her until you figure out how she may have gotten out. I once found an Akita that had climbed a 6 ft. wood fence when she was frightened by a thunderstorm and had run more than 20 blocks in a straight line. When something frightens them, they can cover a huge amount of ground, and are then disoriented. A friend's Italian greyhound bolted from a doggie daycare/boarding facility and was found a week later 10 miles away, having crossed two major freeways. Thin, scared, filthy, and his pads were bloodied, but he's fine now. Give that Ursula a big cuddle-I'm sure she's happy to be home safe and sound.
Jennifer Zaayer