The Dream Sanctum: Beyond The End - The Dream Sanctum, #2

What happens when you travel beyond the boundaries of a dream? Kai and his restless friends decide to go where no one has gone before, and set out to sail the vast oceans to discover what lies in the uncharted waters of a dream. With a brand new ship and some less-than-desirable company, they set out for 'The End, ' the point on the map that marks the farthest any explorer has ever gone. After battling a sea monster and coming across a living island, Kai knows this will be an amazing adventure. During their travels, however, they begin to realize that one of their companions is not all they have claimed to be.
Before they can look into this mystery they find themselves in a strange and threatening land... a land that starts to look hauntingly familiar. Suddenly faced with the possibility they may never wake up, Kai and his friends realize they're in a fight for their very lives. As they try to survive and make it back home safely, he starts to understand that there's a good reason the secrets beyond the Sanctum's borders have been left alone...
and why everyone else who tried to travel beyond them never came back.