Human Liam and Werewolf Ryan parallel world

Waking up in a dark place is terror in and itself. But the boy of 15 felt that he grew up in a night by approximately 5 years and was sent to a parallel universe.

He was not the only one in this predicament, his best friend was also in the same condition.

When found where they were, it threw them off. They were in a library in the middle of the sea. The owner of the library is nothing but a skeleton.

And Liam's once normal friend no longer felt normal. He was a werewolf.

"Nothing makes sense", Liam who finally lost his sanity snapped.

"Calm down, at least nothing worse could happen", Ryan said smiling awkwardly.

There was a sudden wailing noise. And when they turned,
"The fishes in this sea are longer, I guess."Ryan who was looking at the monstrous thing mumbled as he lost his smile.

"Well things could get even worse, I guess, " Liam who was looking at the beast said.

What was the reason for these two's arrival in the parallel universe? Is it a coincidence or were they called here for a reason?

Who are they supposed to trust except for themselves?

Will Liam and Ryan go back to their world or will they perish in the quest?