In the Ireland of The Call teenagers do not go on planes, they don't travel across oceans and they don't drive cars. Instead, they train. They run and fight and learn to survive. That's because at any moment they may be called through to another realm alone where everyone they encounter will be trying to kill them with magic in horrific and grotesque ways.
Nessa is determined to live. This is even though only one in ten teens makes it back from their abduction (and some of them come back changed forever). On top of that, Nessa had polio as a small child and her legs were weakened so the teachers at her school are sure she will not be one of the survivors. But since her tenth birthday Nessa has been willing to do what it takes to make herself ready. Not all of her classmates share this determination, but all of them know that they will not make it to twenty without getting the call.
This is the kind of page turner that will make you think of your first time reading The Hunger Games. The world building is tight and the other realm features magic that is so dark and twisted, fans of horror will have plenty to scare themselves with.