Bombs

Every summer these strange objects appear in the fields, oddly enough always just as the grass or hay is cut. Their tight glossy smoothness could contain strange secrets. Sometimes they seem filled with silent menace as they sit in the fields in this regular but haphazard fashion; but occasionally, on a warm sunny afternoon like this, they exude friendliness. It's OK, they seem to say: we're looking after things, nothing really bad can happen.

There is a tangy cheddar-type cheese from Snowdonia (Eryri) called Black Bomber. It looks exactly like one of these.