WaWandaVision

I'm bloody dyinggggggggg
          	My brother just called Supernatural.....
          	
          	
          	Wait for it.......
          	
          	
          	Magical Americans
          	
          	
          	I am dyinggggggg

WaWandaVision

Hiya, I'm trying to remember the name of a series I read a few years ago. I can find it so I was wondering if you guys could help. Heres the plot of the first book:
          
          A boy is sentenced to death for something and the form of execution is your put in a shed. No ones knows what happens but no ones come out after they've gone in. The boy is put in but instead of dying a clockwork (magic) tiger (or lion) takes him to a school like place with magic and that sort of stuff.
          
          That's all I can remember from the first book and all I can remember from the second is the main characters being on a different island where everyone has amber eyes and are attached to these line things (like a train) and they're like hypnotised and one of the characters gets stuck there.
          
          I know it's a bit vague but I read the books like, 4-5 years ago soooooo yeah