Also just finished reading this novel by New Zealand author Maurice Gee. The story centres around an elderly 'down and out' and his sister's complicated relationship with him. It's largely told through her experiences and perspective, prompted by a young man appearing in her life looking for his long lost grandfather (the brother).
Although some of the writing in this was excellent, and the sister is well-drawn as a character, I found the rest of it quite weak. There is a 'twist' at the end that I thought was unnecessary and seemed to jar with the rest of the novel and the characters. As a thought-provoker about why some people end up on the streets and cut off from mainstream life, it was okay, but a bit on the simplistic side. 5 out of 10.