Raffa Santana has always loved the mysterious Forest of Wonders. For a gifted young apothecary like him, every leaf has the potential to unleash a kind of magic. If only Raffa's cautious father would allow him to experiment freely, Raffa knows he could discover miracles. When an injured bat crashes into Raffa's life, he invents a cure from a rare crimson vine that he finds deep in the forest. The powers of the vine are stronger than Raffa could have imagined. His remedy saves the animal but also transforms it into something much more than an ordinary bat, with far-reaching consequences. Raffa's experiments lead him away from home to the forbidding city of Gilden, where troubling discoveries make him question who he can trust . . . and whether exciting botanical inventions, including his own, might actually threaten the very creatures of the forest he wants to protect. This enchanting new series from Linda Sue Park, recipient of the Newbery Medal for A Single Shard, richly explores the links between magic and botany, family and duty, environment and home.

In the second installment of the spellbinding Wing & Claw series, Newbery Medal—winning author Linda Sue Park takes a young apothecary hero to new heights of danger, exciting adventure, and intriguing botanical magic. Raffa Santana has spent all winter hiding in the harsh wilderness of the Sudden Mountains, and now it’s time to return home. Home, where his parents will help him fight back against the vile Chancellor who has captured and altered the wild creatures of the Forest of Wonders. Home, where Raffa’s beloved companion, Echo the bat, will recover from his mysterious sickness. To get there, Raffa must make a treacherous journey across Obsidia. Along the way, he will discover a luminous plant that might be the key to saving the creatures stuck in the Chancellor’s grasp… if only Raffa can unlock the plant’s secrets and deliver the cure to the captive animals. Cavern of Secrets masterfully explores one boy’s responsibility to his friends, family, and the wider world.

Raffa Santana is a healer, not a fighter. As a gifted apothecary, he has amazing instincts for unleashing the potential of magical-seeming plants. But his skills have failed to free the animals that the heartless Chancellor captured and turned against the people of Obsidia—directly threatening Raffa’s friends and family. Now Raffa and his ragtag group of allies are preparing to confront the Chancellor’s armies in battle. Great beasts, small animals, and humans alike will be joining the fight, and Raffa’s heart yearns to prevent injuries—and worse—on both sides of the battle. After all, the Chancellor’s creatures will be fighting against their will. Can Raffa’s instincts for apothecary arts bring a tolerable resolution to an impossibly unfair fight?