Margaret Mahy charges into best-seller list

An indie bookseller friend has told The Bookman this morning that in the top 20 best-sellers for indie booksellers over the last week there were no fewer than five Margaret Mahy titles featured.
They were in order of sales:

The Margaret Mahy Treasury

A Lion in the Meadow

Down the Back of the Chair

The Moon & Farmer McGee

The Great Piratical Rumbustification