"Twins Ethan and Ella go on an adventure in Greece, where they learn about the mystery-solving Society of Apollo"--

Kai and his fellow dragonseers practice their powers in a hidden cavern known as Guild Hall. But when the royal prince invites them to the palace, the dragonseers must leave the safety of their hideout. There they encounter a fearsome dragon and a mystical potion in a secret lair! The others sense danger, but Kai feels strangely drawn to a mysterious dark force, one with the power to destroy. Will he ignore the warnings of his own loyal dragon, Boneshadow,...

Sixteen-year-old queer Indian American, Maya, who falls for her white, wealthy, and complicated female classmate, Juneau, is asked to join a secret society of artists, vandals, and mischief-makers who fight for justice at their school.

Grace Blakely believed that finding the truth about her mother's murder would finally give her peace, but now she knows that it is only the beginning of the secrets that will dominate her life--and make her a target on Embassy Row in Adria.

Thirteen-year-old Clivo Wren learns that his recently deceased father was not an archaeologist as he was told, but rather a cryptid catcher, known for finding elusive mythological creatures, and now Clivo must pick up where his father left off and track down a cryptid whose blood grants immortality before the knowledge falls into the wrong hands.

Ryan Quinn and his best friend, Danny, stowaway on a plane to Africa in an attempt to save two revolutionary musicians whose identities have been compromised by a traitor within the Emergency Rescue Committee, while Ryan's parents, and ERC operatives, try to track the turncoat back in New York.

"One bloodthirsty ruler has been overthrown by another, casting the shadow of death over the Solaris Empire. Vhalla Yarl stands upon the stage of fate, prepared to do battle one final time. Fragile alliances will be tested and new bonds will be formed as the world is reshaped. She fights as the champion of peace, but when the night is darkest will she be able to pay the price of a new dawn?" -- back cover.

Cara and her dragon, Silverthief, have always kept each other safe from danger. They're a perfect pair -- they don't need anyone else, including other dragonseers. Then they uncover a scary secret. There's something the Guild isn't telling them, and Cara and Silverthief must find out what it is! The risk is too great for them to handle on their own. They need help! But who can they trust?

"Vhalla Yarl marches to war as property of the Solaris Empire. The Emperor counts on her to bring victory, the Senate counts on her death, and the only thing Vhalla can count on is the fight of her life. As she grapples with the ghosts of her past, new challenges in the present threaten to shatter the remnants of her fragile sanity. Will she maintain her humanity? Or will she truly become the Empire's monster?"--Front jacket flap.

Moira Moriarty calls upon the clever Sherlock Holmes, her brother James's roommate at school, to help solve the mystery of her father's death, leading them to a secret sect, a rare jewel, and a friendship torn asunder.