HUGE pop-up book

In FS2 they've been learning all about Noah and his ark. To help with their retelling of the story I've created a monster pop-up book using their illustrations of pairs of animals. The book opens out to reveal a (very!) long line of creatures filing into the ark. 

At the end the back covers open out to reveal the ark after the storm. A quick bit of 'tucking the front cover away' then allows for the animals to appear as if they are then leaving! 

The whole thing extends to over 10 metres and is still very much a 'rough' at the moment. I'll get the children to help me polish it next week.