Sophie White 
Where I End [EPUB ebook] 

My mother. At night, my mother creaks. The house creaks along with her. Through our thin shared wall, I can hear the makings of my mother gurgle through her body just like the water in the walls of the house… Teenage Aoileann has never left the island. Her silent, bed-bound mother is a wreckage, the survivor of a private disaster no one will speak about. Aoileann desperately wants a family, and when Rachel and her newborn baby move to the island, Aoileann finds a focus for her relentless love.