All irregularities will be handled by the forces controlling each dimension. Transuranic, heavy elements may not be used where there is life. Medium atomic weights are available: Gold, Lead, Copper, Jet, Diamond, Radium, Sapphire, Silver and Steel. Sapphire and Steel have been assigned. Sapphire, Steel and Gold are uninvited guests at a wedding on board a boat, the Perfect Day. Quite why they are there soon becomes very apparent…