I liked this, and ... it did feel young. The MC is 12-year old Ben. 3rd person/past tense.  It was a bit too predictable for me (the Jack storyline, stuff with Scout), with things just happening a little too conveniently at times. But I could see this being a hit with the younger audiences ... animals, action, and our young MC and his dog(s) saving the day. 

I had this in all three formats ... I'd picked up a physical copy at a thrift store (for the Little Free Library) and figured I'd review it myself first, #middlegradeMay and all that. I was able to borrow the audiobook and Kindle copy from the library.