Bringing Lila into the house is not feasible at this time. Our house is very small, and I have three cats who would most like bother her if she were captive.
It's chilly outside but not freezing, 44 degrees F.
Lila's appetite has decreased over the last several days. She is also not interested in water. She DOES appear to be very healthy and strong (and stubborn).
I just picked a large lava rock to move to the section of my garden that I'm planning to till this morning.
Did a quick search for her, but I didn't find her.
Thank you, Anna, I did view your answer and truly appreciate all the good advice you gave me. I prepared a suitable place for my box turtle to use for hibernation when she's ready. She started using her new lava rock "cabin" covered with Timothy Hay right away. I searched for her several more times during the day, and she wasn't in her usual inadequate spots, so I'm reasonably certain that she is enjoying her new digs: much more roomy, warmer, easier to dig deeper, and in the SUNNIEST spot in my entire back yard, so it will remain comfortable throughout the winter. Thanks again for your excellent advice and for giving me the confidence I needed to do the right thing for this beautiful little creature!