The dandelion years (by Erica James)

(Amazon UK link) It’s over nine years since I acquired and read ‘The dandelion years’ by Erica James. I had no memory of the story at all, or any of the people, so it was definitely time for a re-read. 
The main character is a young woman called Saskia, who is celebrating her 32nd birthday as the book opens. Not that she’s out partying or drinking. She lives at home with her father and two grandfathers, and has done so since her mother and two grandmothers died in a car crash, when she was ten. 
Th...