[edit] Green Panes and Red

Green panes and red,
In Gran's glass door,
Make coloured pools
Along the floor.

And when there's sun,
In the dark, brown hall,
Soft rainbow lights
Dart up the wall.

They bob and flash
Upon each stair,
Soft green and red,
They flutter there.
Then we pretend,
My gran and me,
That butterflies
Have come to tea.