Olivia is travelling through space when she sees something amazing from the spaceship's window.
It is Astron, an alien who has been separated from his family by a meteor storm.
Can Astron rescue Olivia from the fierce dark-biters and can she help him find his family?
Astron is a bright, beautiful story of friendship set among the stars. Oxford Reading Tree Story Sparks is an emotionally-engaging fiction series that will fire children's imaginations.
These 36 original stories will get children thinking, and develop and deepen their comprehension skills.
The variety of authors and illustration styles broadens children's reading experience, with something to appeal to every child.
All the books in the series are carefully levelled, so it's easy to match every child to the right book for them.
They also contain inside cover notes, to enable parents and teachers to support children in their reading.
Help with children's reading development is also available at www.oxfordowl.co.uk.