I'm pretty sure they aren't freemasons, but we've had people on our street come and dig up a whole lot of the blacktop, do things that shake the house all through the day (for weeks now), and bury mysterious things underground. THEN they pave over it all - so who knows what they've buried.
They claim to be installing town sewers, but who's to say? Best case, if they are then I can only assume it's a secret conspiracy aimed at depriving us, innocent town-folk, of our beloved septic tanks. Worst case, they have secretly dug a path to China (which, of course, means that they have facilitated the previously futile efforts of little girls and boys with plastic shovels throughout the ages; and now a whole bunch of little New England kids are going end up somewhere in China - and once you've dug your way to China, how do you get back?)