DK 
DK Super Readers Level 1 Becoming a Butterfly 

Use your reading superpowers to learn all about the lifecycle of a beautiful butterfly — a high-quality, fun, non-fiction reader — carefully levelled to help children progress.
Becoming a Butterfly is a beautifully designed reader all about a butterfly»s incredible lifecycle, from egg to caterpillar to chrysalis before emerging as a beautiful butterfly.
The engaging text has been carefully levelled using Lexiles so that children are set up to succeed.
A motivating introduction to using essential non-fiction reading skills.
Children will love to find out about the amazing journey from egg to butterfly.