Deeper
ASIN: B005EZ0TXY
Edition language: English
Series: Tunnels (#2)
Same as before: Interesting concept, but kinda slow and boring in execution. I guess it's because I'm a bit too old for these books, I surely would've loved it as a kid.
I'm getting more involved in the story. I like that it's well-written and that the main characters have been well-thought-out, though the supporting characters are still pretty flat.