Answer:
Freak The Mighty is a teenage novel published in 1993. Max is a lonely person, marked by his hard past in which his father killed his mother, with low self-esteem and with few friends, until he meets Kevin, a boy who moves in front of his house and with whom he develops a great friendship despite their differences, mainly thanks to the openness and personality of Kevin, who includes him in his life without looking at Max's past or his personal characteristics. The novel depicts the year of their friendship and culminates in the fact that both are confronted with their problems in an existential way. In the end, Kevin succumbs to a long-standing degenerative illness on his 13th birthday.
The main theme that develops in the novel is friendship, mainly because it shows how two people with problems (one his past, the other his illness) support each other and help each other cope with their difficulties, without looking at their appearance, the past or the image of the other.