It’s December 1, 1955. A boy and his mother are riding the bus in Montgomery, Alabama like any other day—way in the back of the bus. The boy passes time by watching his marble roll up and down the aisle with the motion of the bus… Until a big commotion breaks out from way up front. With simple words and powerful illustrations, Aaron Reynolds and Coretta Scott King medalist Floyd Cooper recount the pivotal arrest of Rosa Parks at the dawn of the Civil Rights Movement.