The Winter Garden — Hayden Thorne

Fifteen-year-old Nicholas' fragile health forces him into a life of isolation and loneliness, his connection to the outside world nothing more than a glimpse between the bars of an iron gate in his family's spacious and paradise-like garden. His life changes when a bold young stranger not only befriends him but also dares to trespass into Nicholas' quiet world.

The two boys' friendship deepens as Adrian's visits increase, their connection strengthening in defiance of too-real dangers posed by the coming winter on Nicholas' health. It's a bond that withstands the sting of separation, bringing both boys back to each other again and again, weathering time and ensuring that the impossible is, in the end, very much attainable.