This is the criteria on which little sisters are graded. Inspired by the notes Alison McGhee's own kids would write each other, this heavily illustrated collection of letters and messages from an older brother to his little sister reveal the special love--or, at the very least, tolerance--siblings have for each other.

    As they risk their lives traveling through haunted dungeons, swamps, and high society balls — they also come closer together as friends.Motivated by rivalries, ideals, and a lust for adventure, these critters navigate not only perils and dangers of the natural world, but also perils and dangers… of the heart!

    She's invisible at high school.She's too visible at the fencing gym.Aliera's starting to wonder...where does she belong?

    For one thing, kids as young as twelve get to apply for these prestigious summer jobs. And as for the applicant pool . . . well, these kids come from all over history.When Delia finds herself working at the Time Museum, the last thing she expects is to be sent on time-traveling adventures with an unlikely gang of kids from across the eons. From a cave-boy to a girl from the distant future, Delia's team represents nearly all of human history! They're going to need all their skills for the challenge they've got in store . . . defending the Time Museum itself!