Gibbous Moon by Michael Bannister

Michael is a teenager with a thirst for life, dying to learn as his grandfather is learning to die. Grandfather is dying a slow, painful death. Michael's best friend submits to anorexia. Father is an alcoholic. Aunty Joan suffers from Down's Syndrome but this doesn't seem to have impaired her sexual appetite. Michael falls in love with a German exchange student. Is it going to end in tears?