1.   Billy calls upon his invisible friend, Ed, who is no help in consuming visible food.

2.   A simple enough story about a boy who gives up his invisible friend for the real thing.

3.   Actually, he is talking to Bogus, his invisible friend.

4.   Did you have an invisible friend?

5.   Growing up in Southport, Lancashire, she was a middle-class child with a vivid imagination and invisible friends, some of them animals.