You just heard three words you'd never heard before: B-lymphoblastic leukemia/lymphoma with BCR-ABL1. Maybe you're still sitting in a hospital chair, or in your car in the parking lot, or staring at your phone in a daze. You have a disease with a name that doesn't even sound real, and you have a thousand questions. This guide is your steady hand in the dark, written for real people, not medical students.