Madeline has a very rare disease and is allergic to everything in the world. She can't leave her house. In fact, she hasn't left her house in 17 years. The only two people she has any real contact with are her mother and Carla, a nurse. But one day, a family moves in next door, bringing with them a boy her age. As Madeline watches him through the window, her gaze locks with his. The boy's name is Olly, and it doesn't take long for her to make contact with the mysterious neighbor. From day one, it's clear that what follows will be a disaster. But not the one Madeline feared.
With a story about the exciting mystery of life and heartache, American author Nicola Yoon has quickly become one of the most popular writers in the world. The novel Everything, Everything has been translated into 41 languages and has been made into a film. (taken from emka.si)

