The September morning that we made our acquaintance, it was unseasonably cold. My breath frosted in the air. It was early -- the sun just peeking over the horizon -- and I'd just come home from dropping my husband off at the train station.I was almost inside when I heard it.Mew.I ticked off possibilities. I had two cats, one fairly young, but they were both indoor cats. My landlords had three cats, but that tiny me could not possibly have come from them.Mew.A stranger at my door...There, blinkin...