A little ammusing story for you...
I was moving into a new apartment and I had my little snakes tightly secured in my laundry socks 8-P and I placed them in an enitrely empty room. Well, one of the buggers was determined to get out, and she did. Me and bro spent two hours checking every singly corner of the room.
At first I feared she'd crawled into a tiny tiny hole near the heating register, and we ripped apart the whole baseboard heating system in the room, no snake. After two hours of searching a small apartment bedroom we took a quick break and layed on our back in the room...
and just as we layed back, staring at the ceiling... We found the little bugger... and the ceiling. She had, somehow, climbed up the wall, and was cleverly perched betweek the roof and the closet door track. The doors weren't even in, so how the hell she made it up the wall is a freaking mystery.
Even in an empty room, she had managed to find a superb hiding place!
And she didn't want to come down. The roof is stucco so I didn't want to pull her out, for fear of hurting her on the roof. So I had my brother stand underneath her with his hands out and I rudley pushed her face back until she fell down, right into his waiting hands.
I will never again underestimate the cunning hiding places of a snake. Don't give up hope, fellow herper, chances are, you're little buddy is staring at you right now. 8-P
Good luck!