Waiting in the wings, bobbing in the uppermost corner of the ceiling behind the man, is the biggest boulder of them all, ready to be called to the stage. Its time to shine will come.

For now, his fingers flutter along the length of the instrument; the snappy banter will have to wait. Did Mister Nobody think those stones were out of the picture now? He'd better think again. At a string of high notes they come swerving back around at velocity toward his co-star's back, none of their earlier momentum lost.