Sage Winters always knew her sister was a little different even though they were identical twins. They loved the same things and shared a deep understanding, but Rosemary-awake to every emotion, easily moved to joy or tears-seemed to need more protection from the world. Six years after Rosemary's death from pneumonia, Sage, now sixteen, still misses her deeply. Their mother perished in a car crash, and Sage's stepfather, Alan, resents being burdened...

As identical twins, their mother insists that everything about them be identical: their clothes, their toys, their friends...the number of letters in their names, Haylee Blossom Fitzgerald and Kaylee Blossom Fitzgerald. If one gets a hug, the other must, too. If one gets punished, the other must be, too. Homeschooled at an early age, when the girls attend a real high school they find little ways to highlight the differences between them. But when...

Max and Ruby spend so much on emergencies while shopping for Grandma's birthday presents, that they just barely have enough money left for gifts.

The Boxcar children investigate the disappearance of a student's research paper from an observatory and the subsequent disappearance of another student.

Are Beth and Josh really in love or just pretending to be in order to spy and continue the feud between the Malloy sisters and the Hatford brothers?