We've covered a number of environmental stories in these posts, and this is one that links us and our devices to the endangering of species.
Gill Lewis, former vet turned children's author, has written 'Gorilla Dawn' set in the Democratic Republic of Congo - where the materials that make our smartphones lead to danger for these great apes.
The story also links to the issue of child soldiers, where two find an orphaned gorilla and endeavour to get it to safety.
The globalisation that threatens the gorillas may also hold out the possibility of saving them as it leads to understanding, empathy and aid.
See more about the issues, 'Gorilla Dawn' and Gill Lewis' mesmerising illustration of a young gorilla at http://www.theguardian.com/childrens-books-site/2015/sep/03/your-mobile-phone-is-killing-gorillas-gill-lewis