Eighteen years old and fizzing with optimism, Solimar Castro-Valdez embarks on a perilous journey across the Mexican border. Weeks later, she arrives in Berkeley, California, dazed by first love found then lost, and pregnant. This was not the plan. Undocumented and unmoored, Soli discovers that her son, Ignacio, can become her touchstone, and motherhood her identity in a world where shes otherwise invisible. Kavya Reddy has created a beautiful life in Berkeley, but then she cant get pregnant and that beautiful life seems suddenly empty. When Soli is placed in immigrant detention and Ignacio comes under Kavyas care, Kavya finally gets to be the singing, story-telling kind of mother she dreamed of being. But she builds her love on a fault line, her heart wrapped around someone elses child. Nacho to Soli, and Iggy to Kavya, the boy is steeped in love, but his destiny and that of his two mothers teeters between two worlds as Soli fights to get back to him. Lucky Boy is a moving and revelatory ode to the ever-changing borders of love.