A tale of the distant future by the author of The Shape-Changer's Wife brings listeners to a world in which the fate of all life rests on the voice of an angel.

Sharon Shinn's Twelve Houses books have fascinated fans and critics alike with their irresistible blend of fantasy, romance, and adventure. Now in Quatrain, she weaves compelling stories in four of the worlds that fans love in "Flight", "Blood", "Gold", and "Flame".

Zoe Ardelay receives astonishing and unwelcome news: she has been chosen to become the king's fifth wife. Forced to go to the royal city, she manages to slip away and hide on the shores of the mighty river. It's there that Zoe realizes she is a coru prime, ruled by the elemental sign of water. She must return to the palace, not as an unwilling bride for the king, but a woman with power in her own right.

Brianna loves her new job as maid to Lady Marguerite. Like many high nobles, Marguerite is attended by echoes, silent creatures who look exactly like her and move in perfect synchronicity. News soon comes that Marguerite has been invited to the royal city as a potential bride for the crown prince. Brianna is delighted to accompany Marguerite to the city - and perhaps get a chance to continue her own flirtation with Nico, one of the king’s inquisitors. Then, disaster strikes on the road when they come under attack.

Ester’s family was torn apart when a manticore killed her mother and baby brother, leaving her with nothing but her father’s painful silence and a single overwhelming need to kill the monsters that took her family. Ester’s path leads her to the king’s Royal Mews, where the giant rocs of legend are flown to hunt manticores by their brave and dedicated ruhkers. Paired with a fledgling roc named Zahra, Ester finds purpose and acclaim by devoting herself to a calling that demands absolute sacrifice and a creature that will never return her love.

On the outside, Dina Demille is the epitome of normal. She runs a quaint Victorian Bed and Breakfast in a small Texas town, owns a Shih Tzu named Beast, and is a perfect neighbor, whose biggest problem should be what to serve her guests for breakfast. But Dina is...different: Her broom is a deadly weapon; her Inn is magic and thinks for itself. Meant to be a lodging for otherworldly visitors, the only permanent guest is a retired Galactic aristocrat who can’t leave the grounds because she’s responsible for the deaths of millions and someone might shoot her on sight.

Nevada Baylor runs a small-time detective agency in Houston, Texas, busting scammers, exposing cheaters, and dealing with petty criminals. She's very good at her job–helped by a magical ability to sense when someone tells the truth or lies. But when she's forced into accepting a case to find a radical pyrotechnic who can conjure heat and fire at will, Nevada knows she's out of her league. To bring him to justice, she'll have to join forces with someone who wields an even more dangerous power.

Mercy Thompson is a shapeshifter, and while she was raised by werewolves, she can never be one of them, especially after the pack ran her off for having a forbidden love affair. So she’s turned her talent for fixing cars into a business and now runs a one-woman mechanic shop in the Tri-Cities area of Washington State.

Within the Eastern Empire, Duke Kordas Valdemar rules a tiny, bucolic Duchy that focuses mostly on horse breeding. Anticipating the day when the Empire's exploitative and militant leaders would not be content to leave them alone, Korda's father set out to gather magicians in the hopes of one day finding a way to escape and protect the people of the Duchy from tyranny.

Leo Graf was just your average highly efficient engineer: mind your own business, fix what's wrong, and move on to the next job. But all that changed on his assignment to the Cay Habitat, where a group of humanoids had been secretly, commercially bioengineered for working in free fall. Could he just stand there and allow the exploitation of hundreds of helpless children merely to enhance the bottom line of a heartless mega-corporation?

The Waverleys have always been a curious family, endowed with peculiar gifts that make them outsiders even in their hometown of Bascom, North Carolina. Even their garden has a reputation, famous for its feisty apple tree that bears prophetic fruit, and its edible flowers, imbued with special powers.

Generations of Waverleys tended this garden. Their history was in the soil. But so were their futures.

Together again in the house they grew up in, the Waverley sisters realize they must deal with their common legacy - if they are ever to feel at home in Bascom - or with each other.

My life was going just fine by most standards. I ran a successful business in a tight-knit magical community, and lived just blocks from a beautiful lake and series of hiking trails. Then Selene showed up. According to some magical code I inherit my aunt's ancient familiar; a grumpy ten-pound cat with a broken filter. She fancies herself something of a saber-toothed tiger, and claims to have wrestled the thread of her ninth life from the hands of the Fates themselves—although, I'm pretty sure that last part isn't true. Almost positive.

When Finlay Ashowan joins the staff of the King and Queen of Daxaria, he’s an enigma. No one knows where he comes from or how he came to be where he is, which suits Fin just fine. He’s satisfied simply serving as the royal cook, keeping nosy passersby out of his kitchen, and concocting some truly uncanny meals. But Fin’s secret identity doesn’t stay hidden for long. After all, it’s not every day a house witch and his kitten familiar, Kraken, take to meddling in imperial affairs.

The half-mad Prince Boleso has been slain by a noblewoman he had intended to defile. It falls to Lord Ingrey kin Wilfcliff to transport the prince to his burial place and to bring the accused killer, Lady Ijada, to judgment. The road he travels with his burden and his prisoner is fraught with danger. But in the midst of political chaos, magic has the fiercer hold on Ingrey's destiny, and Ijada herself may turn out to be the only one he dares trust.

World-renowned Harvard symbologist Robert Langdon is summoned to a Swiss research facility to analyze a cryptic symbol seared into the chest of a murdered physicist. What he discovers is unimaginable: a deadly vendetta against the Catholic Church by a centuries-old underground organization, the Illuminati. Desperate to save the Vatican from a powerful time bomb, Langdon joins forces in Rome with the beautiful and mysterious scientist Vittoria Vetra.