What is a Gallagher Girl? She's a genius, a scientist, a heroine, a spy... a Gallagher Girl is whatever she wants to be.

Maybe Liz was right and she'd wanted someplace safe. Maybe Mr. Solomon really did understand that running was the only way Macey would find out if we'd run after her. Or maybe, like me, she just wanted to disappear for a little while

I know too well how dangerous hope can be, how it grows and sometimes dies, taking its host with it. It's more powerful than anything Dr.Fibs keeps in his labs, more precious than all the secrets inside Sublevel Two.

We wear a lot of labels in our lives, and it's so very easy to be defined by them. We have grown somehow accustomed to thinking of ourselves as a size eight or a size fourteen, as a capricorn or a taurus, as single or in love.

Two days after my dad's funeral, my mom went on a mission. I never understood it until then--that sometimes a spy doesn't need a cover so much as she needs a shield.

You look disappointed to see me, Zach," Macey teased. "Don't you like my jacket?

Sometimes people run… to see if you'll come after them