Barking Bonanza

As I sit here in front of my computer I'm being serenaded by my dogs.  Which wouldn't be so bad if  it wasn't eleven at night.  Normally, by this time I'm cozily ensconced in my bed, dreaming sweet dreams.  Reba, for some unknown and cruel reason has started barking wildly the moment the sun goes down.  I had been bringing her into the house and putting her in her crate to sleep but it's getting cooler here at night and I can't keep that up indefinitely.

I have to wonder if there are any magical solutions to the barking frenzy that occurs, because as anyone with multiple dogs knows, when one barks, they all bark!  Not cool.