We got really attached to the spider. WCK named him/her Super Pooper.*
This morning as we left for school, we did our usual check on Super Pooper and found that he** was gone! I like to think that he wandered off to find a warmer place to sleep for the winter; WCK thinks he got squashed. I never found the body, though, so I like to think that Super Pooper is OK and that he'll be back again someday. Godspeed, Super Pooper. Godspeed.
*Why you should never ask a six-year-old, "What should we name the spider?"
**I'll just go ahead and call the spider "he", because isn't Super Pooper more of a boy's name?