Cover image for the electronic book anthology "Fundamentally Challenged," edited by Jeffrey Turner.  The theme of the antho is that something we take for granted is changed - gravity stops working, the earth stops revolving.  Alison McBain provided the idea for this image.  Here we see everything upside-down, except a boy (and his pangolin).  Trees grow into the ground, earthworms crawl through the air, birds fly through dirt.

Image (c) 2004 Frank Wu