"Mount Vernon and Fairway (A Fairy Tale): Radio King Dom"

This is an-other small point, but I found two merisms in the "Radio King Dom" section of "Mount Vernon and Fairway (A Fairy Tale)."

The children looked everywhere, high and low, checking to see if they could find that transistor radio.  They couldn't find it.  They couldn't find it.  They looked upstairs and downstairs, all through the castle.

Mentioning the opposite extremes ("high and low" and "upstairs and downstairs") gives a sense of the breadth of the search.