DK 
DK Super Readers Level 3 Deep-Sea Creatures 

Use your reading superpowers to learn all about the curious creatures that live deep in the oceans – a high-quality, fun, non-fiction reader – carefully levelled to help children progress.
Deep-Sea Creatures is a beautifully designed reader all about how ocean creatures adapt to a life in the dark deeps of the ocean.
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 slimeballs, glassfish, hagfish and more!