The 'Rules of Six' meets

 Somewhere in hidden location, the organisation of the 'Rules of Six' meets; the fiendish Mu Fanchu leads the meeting, the others have sent their number two's or number three's to represent them.

The pyramidion of Senusret I has been located in the possession of a antiquities dealer; it is needed for one of their fantabulously devious projects; they plan to steal it ...