The United States has been torn in half by the war between North and South. It is vital for an army to know what the enemy is doing—and perhaps spread false information as well. Spying is risky if you are caught. Still, it is worth it to help win the war. Will you: *Become a member of the Pinkerton Detective Agency to spy for the North? *Be a wealthy Southern woman spying for the Confederacy in Washington D.C.? *Be a free black man traveling into the South to spy for the Union? You Choose offers multiple perspectives on history, supporting Common Core reading standards and providing readers a front-row seat to the past.