Just finished Bearkeeper by Josh Lacey. What a story!
It's about a boy who goes to London to search for his missing (maybe dead) father - and to avenge a wrong. But he gets caught up in the world of London and its dark side. And then with bears. And dogs. And murderers. And actors.
I don't want to give too much away, but the bear scenes are amazing. One almost too sad to read. Then others brilliant and uplifting.
This is a cracking story that barely* lets up, always something happening. It's frightening. Horrible. Moving. Everything. I'd really recommend it.
* no pun intended!