What The Dickens
An infant tooth-fairy, orphaned or abandoned, hatches from its egg beside a stream, stretches his tiny limbs, and runs straight into wayward birds, pet cats named McCavity, boy, and a tiger. Later, he runs into a girl tooth-fairy and encounters the rest of tooth fair society. Meanwhile, out in the world, he's a night-time fantasy told to three home-schooled kids whose parents have been called out on an emergency that might by The Cat In The Hat but might, for all we know, the Judgment Day.