Pierce and the City of Imaginaterium

For fans of Harry Potter, Percy Jackson and the Lord of the Rings comes a story like no other.
An epic adventure.
Welcome to the City of Imaginaterium where anything is possible.
First they must survive.
Propelled from their mundane life, Pierce and Peter stumble into a hidden world.
To prevent an ultimate power from being used to put the world into chaos.
A primordial being stands in their way and he seeks revenge.
Now the two friends must battle monsters, outwit troublesome gods, answer riddles and stay alive in their quest to find the legendary tree of life and they have only one power at their disposal; their imagination.