Little Fires Everywhere by Celeste Ng

When Mai and her daughter Pearl rent a house from the Richardson family, Mai promises Pearl that this is a place they will stay.  Shaker Heights, a Columbus suburb, seems idyllic in a Stepford Wives kind of way. Neither family has any idea how intertwined their lives would become.  The Richardsons are a successful family - beautiful house, three perfect children and the fourth, Izzy, a challenge unwilling to fit the mold.  Mai is an artist, whose nomadic thrift store existence has contributed to the confidence of her intelligent daughter Pearl.  For all the teen-agers in both families, the grass is always greener in someone else's "perfect" home. This is a story about what it means to be a family, the nature of motherhood, adoption - many things any book group might want to discuss. 

Celine by Peter Heller

This is a mystery frosted in great characters and sprinkled with humor.  Celine Watkins, New England blue blood turned crusty Brooklyn PI, isn't sure being 70 is cause for retirement. When Gabriela Lamont calls her and begins to share her story, Celine and her partner in crime husband Peter think that they may take at least one more case.  Over 20 years ago, Gabriela's father, a famous photographer for National Geographic, was supposedly killed by a bear just outside of Yellowstone.  This made Gabriela a wealthy woman but she never believed her father was actually dead.  She begins a search on her own but eventually hits a wall and contacts Celine. Skeptical at first,  when Gabriela's research file disappears, Celine's instinct kicks in and the search begins.  There  is a lot of interesting back story to both women's lives and Peter is a delight. Gotta love 70 and still up for adventure.