This is the first-ever memoir of a child’s experience in detention on the US–Mexico border under President Trump’s family separation policy. Left alone in Honduras at just thirteen after the death of his grandmother and uncle, D Esperanza set out with his cousins to reunite with his parents in the United States. After a perilous journey through Central America and Mexico, the boys were separated at the border, and D was detained without information about his fate. Over five months, he kept a journal that bears witness to pain, cruelty, friendship, and resilience, finding hope through bonds with other detainees and the support of a dedicated advocate, Gerardo Iván Morales.