A highly-illustrated, carefully-researched flap book about the mysterious depths of the sea.

Are you brave enough to delve into the chilling darkness of… THE DEEP? With no light, no heat and miles of sea above you, it might be the strangest place on Earth. So, climb inside the submersible and plunge deep down beneath the sunlit surface where you’ll discover disturbing and unusual creatures, explore alien worlds and visit the deepest place on the whole planet, all in this weird and wonderful flap book.