Ugh... I can't believe I have to post this. We have somehow managed to lose this TB on our return to Pennsylvania. We checked for it repeatedly when we were packing, just to make sure this wouldn't happen, yet somehow we have still lost track of it.
We are wracking our brains and double-checking all of our luggage and clothing from the trip, but without luck so far. We are also asking the proprietor of our bed-and-breakfast in Oregon to check the house for it.
All I can say in our defense is that we had a strange trip home. Our San Francisco to Philadelphia flight turned around and returned to SF after only one hour of flight, purportedly because two fuel pumps weren't working. That was scary, but I don't see how it would have resulted in losing this TB.
I know how often TBs go missing and how frustrating that is. The cache we had in mind for this one is very rural and intended for TBs. I'm very sorry and hope that I can report better news at some point soon.