The occurrence of Brown-Sequard syndrome with Horner's syndrome in a child with spinal trauma is a very rare and unusual entity. Brown-Sequard syndrome results from hemisection injury of the spinal cord, mostly in the cervical cord region. The Horner's syndrome presents when the injury is in the cervical region involving the sympathetic pathway. We present you with the case of a 12-year-old boy who was referred from a local hospital with weakness on the left half of his body after sustaining a penetrating injury to his neck by a khuru (Bhutanese dart). Clinical examination was consistent with the diagnosis of Brown-Sequard syndrome with ipsilateral Horner's syndrome. Although cervical spine plain radiographs showed no fracture, computed tomography and magnetic resonance imaging showed a C2 lamina fracture at the left side of the spinous process with indentation to the cord. He was managed conservatively with a soft cervical collar, intravenous antibiotics, and physiotherapy. He had complete resolution of Brown-Sequard syndrome and Horner's syndrome after 1 year. Patients with Brown-Sequard syndrome associated with Horner's syndrome usually have a good prognosis and full recovery rate with regular physiotherapy and rehabilitation. Early diagnosis and treatment will have a better chance of recovery and return to pre-injury status.