"A compelling, fun, and thought-provoking story of magical adventure, coming of age, sacrifice, and family, with secrets that add a lingering darkness to the entire tale."-- Booklist Two young witches, once inseparable, are set at odds by secrets and wildly dangerous magic In the waning days of World War II, with Allied victory all but certain, desperate Nazi diabolists search for a demonic superweapon to turn the tide. A secluded castle somewhere in the south of Germany serves as a laboratory for experiments conducted upon human prisoners, experiments as vile as they are deadly. Across the English Channel, tucked into the sleepy Cumbrian countryside, lies the Library, the repository of occult knowledge for the Societe des Eclairees, an international organization of diabolists. There, best friends Jane Blackwood and Miriam Cantor, tutored by the Societe's Librarian--and Jane's mother--Nancy, prepare to undergo the Test that will determine their future as diabolists. When Miriam learns her missing parents are suspected of betraying the Societe to the Nazis, she embarks on a quest to clear their names, a quest involving dangerous diabolic practices that will demand more of her than she can imagine. Meanwhile Jane, struggling with dark obsessions of her own, embraces a forbidden use of the Art that could put everyone she loves in danger. As their friendship buckles under the stress of too many secrets, Jane and Miriam will come face to face with unexpected truths that change everything they know about the war, the world, and most of all themselves. After all, some choices cannot be unmade--and a sacrifice made with the most noble intention might end up creating a monster.

So desperate that when wealthy strangers ask her to procure libations for an extravagant party Ellie sells them everything she has, including some booze she acquired under unusual circumstances. What Ellie doesn't know is that this booze is special. Distilled from foul mushrooms by a cult of diabolists, those who drink it see terrible things - like the destruction of Long Island in fire and flood. The cult is masquerading as a church promising salvation through temperance and a return to "the good old days," so it's hard for Ellie to take a stand against them, especially when her father joins, but Ellie loves Long Island, and she loves her family, and she'll do whatever it takes to ensure neither is torn apart.

Victorian London is a place of fluid social roles, vibrant arts culture, fin-de-siecle wonders ... and dangerous underground diabolic cults. Fencer Evadne Gray cares for none of the former and knows nothing of the latter when she's sent to London to chaperone her younger sister, aspiring art critic Dorina. Unfortunately for Evadne, she soon learns too much about all of it when Dorina meets their uncle's friend, Lady Henrietta "Henry" Wotton. A semi-respectable aristocrat in public, in private she is secretly in the thrall of a demon obsessed with beauty and pleasure. When Lady Henry and Dorina immediately hit it off, Evadne abandons her chaperone duties and enrolls in a fencing school. There, she meets the fencing master she's always dreamed of. But soon, George reveals he is more than just a teacher. He has dedicated himself to eradicating demons and their servants, and he needs Evadne's help. As Evadne gets pulled further into this hidden world, she begins to suspect that Lady Henry might actually be a diabolist. Even worse, she believes Dorina may have joined her. Combining swordplay, demons, and high society, Creatures of Will and Temper shows a timeless world and adventure readers won't soon forget.