RE:Occam's wax kit and FreemasonryGravina di Matera is a deep ravine or canyon in Italy. So we're talking about a very deep canyon filled with Santonian aged sand which may now be filled with oil.
I can't decifer the cricket reference other than we'll hear crickets about what's going on which may mean we hear nothing or we hear alot because crickets are noisy and there's "no time to die" right now because we are close to the "gravina".