In most cases the event is shielded by a large mass and only telltales arrive on earth. Such telltales include neutrinos, or even some form of radiation.

If some shabby looking “dero” turns up at the gate no need to call the cops, its me.

The leaning jacal of dried rush-withes and corn sheaves, bound to tall saplings thrust into the earth, roofed with yellowed maguey leaves flattened and overlapping like shingles, hunched drowsy and fragrant in the warmth of noonday.

Here was the hidden gender curriculum in full flow - with very clear gendered values and expectations being imparted to the children who walked in: boys are loud and active and like 'sciencey' things such as building and constructing; girls, on the other hand, are quiet and passive, preferring to do 'caring' things and look pretty.