Finally... found it...
It was in e guardroom...
Someone needed a key chain for the office key....
Someone couldn't find one...
Anotherone told someone my table has one...
That's how my bicycle went to the guardroom...
Hmm... didn't know my bicycle can actually move!
Hi all...please leave your footprints behind...leave a message in my chat box...who knows...I may be online to chat with you! 
