The Hermit just called me here at work to let me know Maggie (the Chesapeake) came back! Starflower was playing outside and Maggie came running out of the woods, acting very happy to be home with everyone.
I guess she's in good condition. Very good condition. As in, she wasn't acting hungry or thirsty after being gone for four days. Which more or less confirms our suspicions about the neighbor. Sigh.