Book excerpt: Carol Danvers was just a girl from the Boston suburbs until a chance encounter with a Kree hero gave her incredible super-powers. Now, she's a leader in the Avengers and the commander of Alpha Flight. But what if there were more to the story? When crippling anxiety attacks put her on the side lines in the middle of a fight, Carol finds herself reliving memories of a life she thought was far behind her. You can't outrun where you're from - and sometimes, you have to go home again. But there are skeletons in Captain Marvel's closet - and what she discovers will change her world.