Solimar Castro Valdez is 18 and drunk on optimism when she embarks on a perilous journey across the US-Mexican border. Weeks later she arrives on her cousin's doorstep in Berkeley, California, dazed by first love found then lost - and pregnant. This was not the plan. But amid the uncertainty of new motherhood and her American identity, Soli learns that when you have just one precious possession, you guard it with your life. For Soli, motherhood becomes her dwelling and the boy at her breast her hearth.