Butterflies are the theme of this book from the first endpaper to the last.  Lizzy, Jack, and their new cat visit their butterfly-loving grandmother.  She tell them that they can turn into a butterfly if one lands on the very tip of their nose.  As they are having a snack, a butterfly lands very, very close to Nana… until the cat bursts into the room.  First they have to chase down the cat and put him outside.  Then they have to return all the butterflies to the greenhouse.  It is a busy day for all.  When the children go home, Nana settles down for a rest in her greenhouse with her butterflies.  The artwork is colorful and creatively detailed.  The story itself, though, is a little bewildering.  Does Nana really turn into a butterfly or is it just imagination?