Spirit Animal:The Hidden Cave

There are spirit Animal and The animals going to The Legendary Hidden Cave that no one can enter

But a machine behind the cave is mysterious.
That said, the machine was made by his grandparents, but Grandfather Ancient was not told to Anc, only told his mother, father, uncles, aunts.

~this book maybe get a Violence on this book,read at your own risk~

FUTURE STORIES:

Spirit Animal:The Hidden Cave 2
Dino Charge
Charge The Robotic