Oliver is a character obsessed--with his father's death when Oliver was very young, with the subsequent "return" of the baby they had adopted, with finding this brother and somehow acknowledging him. At times, I can imagine a reader growing tired with this story...obsession can be the same story over and over again. It is the other characters, as foils for Oliver, who make the story work. There is Oliver's mother, Mrs. Finley, Mr. Nice-guy, his replacement father, Oliver's girlfriend, Miranda, who is a photographer like he is, his sister, Mary, and Jared, the boy he thinks may be his lost brother. These characters interrupt his obsession but many of them also provide a wonderful insistence, in an odd way, on life and presence. My favorite part of the book was the photography--Nonny's flower on her tongue, Miranda's anonymous appointments with strangers she photographs from the dark yards outside their homes while they are inside. This is the second book I've read this summer where photography is a major theme. Wonderful.