2017’s In Other Lands is a standalone young adult novel by Sarah Rees Brennan.
Abandoned by his birth mother, raised by his emotionally detached dad, and subjected to incessant bullying at school, thirteen-year-old Elliott does not have much to tie him to the mundane world. When he is offered a spot at school in the until-now-unknown-to-Elliott magical realm known as the Borderlands, he has no reason to say no.
Elliott may expect Hogwarts. What he gets is a place where modern conveniences do not work and nobody is taught interesting spells. This school is a boot camp designed to transform the naïve youths of today into the Border Guard of tomorrow. One consolation: Elliott now has ample excuse to display his skills at bitter sarcasm and complaint.