Nero the guide dog meets a unicorn (Fourth edition.)

This is a tale about Nero, a guide dog for the blind, and Zero, a magical toy unicorn.

The two set out on a thrilling adventure when Zero discovers he has magical powers.

They visit a field in their village to see a donkey and - to Nero's amusement on hearing a farmer relate his story to other villagers in the tearoom - get mistaken for a flying saucer!

When Zero finally learns how to control his magic, the duo embark on an exciting rescue mission aboard a cruise liner.

Can they save the day? There's only one way to find out.