Book picks similar to
Harper by Jo Cassidy


ya
mystery-thriller
young-adult
arc

Nightfall


Jake Halpern - 2015
    Now the sun is just a sliver of light on the horizon. The weather is turning cold and the shadows are growing long.Because sunset triggers the tide to roll out hundreds of miles, the islanders are frantically preparing to sail south, where they will wait out the long Night.Marin and her twin brother, Kana, help their anxious parents ready the house for departure. Locks must be taken off doors. Furniture must be arranged. Tables must be set. The rituals are puzzling—bizarre, even—but none of the adults in town will discuss why it has to be done this way.Just as the ships are about to sail, a teenage boy goes missing—the twins’ friend Line. Marin and Kana are the only ones who know the truth about where Line’s gone, and the only way to rescue him is by doing it themselves. But Night is falling. Their island is changing.And it may already be too late.

The Ward


Jordana Frankel - 2013
    To save her sister, who is suffering from a deadly illness thought to be caused by years of pollution, Ren accepts a secret mission from the government: to search for a freshwater source in the Ward, with the hope of it leading to a cure.However, she never expects that her search will lead to dangerous encounters with a passionate young scientist; a web of deceit and lies; and an earth-shattering mystery that’s lurking deep beneath the water’s rippling surface.Jordana Frankel’s ambitious debut novel and the first in a two-book series, The Ward is arresting, cinematic, and thrilling—perfect for fans of Scott Westerfeld or Ann Aguirre.

Crazy House


James Patterson - 2017
    To avoid execution, she’s told to shut her mouth and keep her head down.Becca was never really good at either.Her only hope for survival is for her sister, Cassie, to find her—that the “good twin” will stop following the rules and start breaking them, before it’s too late. Because the jailers at Crazy House soon discover they made a mistake that could get both sisters killed…

Burning Midnight


Will McIntosh - 2016
    It doesn’t pay much—Alex Holliday’s stores have muscled out most of the independent sellers—but it helps him and his mom make rent.No one knows where the brilliant-colored spheres came from. One day they were just there, hidden all over the earth like huge gemstones. Burn a pair and they make you a little better: an inch taller, skilled at math, better-looking. The rarer the sphere, the more expensive—and the greater the improvement.When Sully meets Hunter, a girl with a natural talent for finding spheres, the two start searching together. One day they find a Gold—a color no one has ever seen. And when Alex Holliday learns what they have, he will go to any lengths, will use all of his wealth and power, to take it from them.There’s no question the Gold is worth millions, but what does it actually do? None of them is aware of it yet, but the fate of the world rests on this little golden orb. Because all the world fights over the spheres, but no one knows where they come from, what their powers are, or why they’re here.

The Starlight Conspiracy


Steve Voake - 2008
    That is, until she meets an old man who entrusts her with a package containing a mysterious item that has unbelievable powers. It is a meeting that will change her life.

The Last She


H.J. Nelson - 2021
    . . I made a mistake, we all did . . . go back to the beginning . . . it’s not too late.As the only female to survive the devastating virus, Ara hasn’t seen another human in months―not since her father disappeared. The plague has swept away humanity, and Ara’s world is desolate, haunted by the ghosts of her former life. Her mother. Her sister.Kaden and his crew live by a code: stay alert, stay alive. When they catch Ara stealing from them, they are furious―and confused. She is the first girl they have seen in three years. And while Kaden knows taking her captive is wrong, he tells himself he’s doing it to protect her.But with Ara determined to follow through on her father’s mission―Go back to the beginning. End the plague―Kaden becomes mesmerized by Ara’s will and beauty. He knows he will do anything to help her, even if it tears their worlds apart.

The Shadow Girl


Jennifer Archer - 2013
    Sometimes I convince myself that she was only a dream. Or that I'm crazy.For as long as Lily Winston can remember, she has never been alone. Iris, a shadowy figure who mimics Lily's movements and whispers in her ear, is with her always—but invisible to the rest of the world. Iris is Lily's secret.But when Lily's father is killed in a tragic accident, his cryptic final words suggest that he and Lily's mother have been keeping secrets of their own. Suddenly, Iris begins pushing Lily more than ever, possessing her thoughts and urging her to put together the pieces of a strange puzzle her father left behind. As she searches for answers, Lily finds herself drawn to Ty Collier, a mysterious new boy in town. Together, Lily and Ty must untangle a web of deception to discover the truth about her family, Iris . . . and Lily's own identity.