A New York Times Bestseller
Winner of the Edgar Award for Best Young Adult Mystery
A USA Today Bestseller
A Publishers Weekly Bestseller
A Booklist Best Book of the Year
An SLJ Best Book of the Year
A VOYA Best Book of the Year
When Margo Roth Spiegelman beckons Quentin Jacobsen in the middle of the night - dressed like a ninja and plotting an ingenious campaign of revenge - he follows her. Margo always plans extravagantly, and until now, she's always planned solo. After a lifetime of loving her from afar, things are finally looking up for Q . . . until day breaks and she has vanished. Always an enigma, Margo has now become a mystery. But there are clues. And they're for Q.