The Ravens Hat

Games that show how mathematics can solve the apparently unsolvable. This book presents a series of engaging games that seem unsolvable--but can be solved when they are translated into mathematical terms. How can players find their ID cards when the cards are distributed randomly among twenty boxes? By applying the theory of permutations. How can a player guess the color of her own hat when she can only see other players' hats? Hamming codes, which are used in communication technologies. Like magic, mathematics solves the apparently unsolvable. The games allow readers, including university students or anyone with high school-level math, to experience the joy of mathematical discovery.

An enchanting fantasy adventure about the importance of bravery, resourcefulness, and following your heart from a debut celebrity author. The most important rule to follow when you hunt for hat ingredients is this: keep wildness in your wits and magic in your fingertips. In Cordelia’s London, magic is real and is woven into objects created by the five Maker families: the Hatmakers, the Bootmakers, the Watchmakers, the Cloakmakers, and the Glovemakers. Growing up in her father Prospero’s footsteps, eleven-year-old Cordelia Hatmaker has learned the family’s ancient skills and secrets so she can one day make her own enchanted hats. When Prospero and his ship are lost at sea during an important ingredient expedition, her grief-stricken aunt and uncle must turn their attention toward fulfilling a decree to create a Peace Hat for the king. But Cordelia refuses to accept that her father is gone for good and desperately begins making plans to find him. Then, the Peace Hat is stolen—along with the Peace Boots, Watch, Cloak, and Gloves—and Cordelia realizes that there is a more menacing plot against the Makers’ Guild, and that Prospero Hatmaker’s disappearance may be connected. Cordelia must uncover the truth about who is behind the thefts if she is to save the Makers and find out what really happened to her father. Full of magic, surprise, and adventure, Tamzin Merchant’s sparkling debut introduces a captivating heroine and her extraordinary world.

Alice Liddell and Dorothy Gale team up once again to fight a new evil terrorizing Edwardian London in this dark fantasy by the author of The Red King. A grisly death in the Tower of London and a deadly attack on an ocean liner in the mid-Atlantic signal the arrival of the Raven, a creature that seeks to reshape the universe. Alice Liddell and Dorothy Gale, fresh from defeating the Red King, must try to prevent it. But even their childhood adventures in other worlds haven’t prepared them for the deadly ambition of this relentless creature of darkness.

'A fascinating and delightfully written book about some very smart people who may not, or may, be about to transform humanity forever' JON RONSON 'Beautifully written, and with wonderful humour, this is a thrilling adventure story of our own future' LEWIS DARTNELL, author of THE KNOWLEDGE and ORIGINS Are paperclips going to destroy life as we know it? What can Mickey Mouse teach us about how to programme AI? Could a more rational approach to life be what saves us all? This is a book about about a community of people who are trying to think rationally about intelligence and what insight they can and can't give us about the future of the human race. It explains why these people are worried about an AI apocalypse, why they might be right, and why they might be wrong. It is a book about the cutting edge of our thinking on intelligence and rationality right now by the people who stay up all night worrying about it.

SHORTLISTED FOR THE 2020 WORLD FANTASY AWARD Gods meddle in the fates of men, men play with the fates of gods, and a pretender must be cast down from the throne in this masterful first fantasy novel from Ann Leckie, New York Times bestselling author and winner of the Hugo, Nebula, and Arthur C. Clarke Awards. "Absolutely wonderful. . .utterly brilliant." -- The New York Times Book Review For centuries, the kingdom of Iraden has been protected by the god known as the Raven. He watches over his territory from atop a tower in the powerful port of Vastai. His will is enacted through the Raven's Lease, a human ruler chosen by the god himself. His magic is sustained by the blood sacrifice that every Lease must offer. And under the Raven's watch, the city flourishes. But the Raven's tower holds a secret. Its foundations conceal a dark history that has been waiting to reveal itself. . .and to set in motion a chain of events that could destroy Iraden forever. "It's a delight to read something so different, so wonderful and strange." -- Patrick Rothfuss For more Ann Leckie, check out:Ancillary JusticeAncillary SwordAncillary Mercy Provenance

Noted scientist and kayak adventurer undertakes a journey of spiritual healing Jon Turk has kayaked around Cape Horn and paddled across the Pacific Ocean to retrace the voyages of ancient people. But, the strangest trip he ever took was the journey he made as a man of science into the realm of the spiritual. In a remote Siberian village, Turk met an elderly Koryak shaman named Moolynaut who invoked the help of a Spirit Raven to mend his fractured pelvis. When the healing was complete, he was able to walk without pain. Turk, finding no rational explanation, sought understanding by traversing the frozen tundra where Moolynaut was born, camping with bands of reindeer herders, and recording stories of their lives and spirituality. Framed by high adventure across the vast and forbidding Siberian landscape, The Raven’s Gift creates a vision of natural and spiritual realms interwoven by one man’s awakening.

The officer, Zayden Le Cross, secured his position as the highest-ranking official in the Crystalline Nera City after successfully intervening in the Agon Kingdom incursion, previously ruled by Lord Xenos, the Xerian King, Tate Kidman's twin brother. While investigating a missing young woman with supernatural abilities, he discovered a connection to Cynthia Reddfield, a wealthy noblewoman who is also a fire lunar witch. Unbeknownst to him, Cynthia would ultimately change his life by revealing a hidden history between them. Additionally, the Xerian Clan Brothers threatened the realm of Pandora, leading Officer Zayden to collaborate with the only person who could stop them.