Rhia Harlyn is a noble in Shen, one of the dozens of shadowlands which separate the bright, alien skyland. She has a missing brother, an unwanted marriage proposal and an interest in science considered unbecoming in her gender. Her brother's disappearance coincided with a violent unsolved murder, and Rhia impulsively joins the search party headed into the skyland - a place whose dangers and wonders have long fascinated her. The dangerous journey brings her into conflict with a young rebel stuck between the worlds of shadow and light, and a charismatic cult leader who believes he can defeat death itself. File Under: Fantasy [ Secret Science | Iron Age | Caravan of Courage | Into the Light ]

The Sidhe look like us. They live amongst us. What they lack in numbers they make up with their fearsome mental abilities and the considerable physical resources at their disposal. And their biggest advantage? No one believes they exist. Almost no one. Bez, the best hacker in human-space, is fighting a secret war against them. Always one step ahead, never lingering in one place, she's determined to bring them down. But she can't expose the Hidden Empire alone and when the only ally she trusted fails her she must accept help from an unexpected quarter. Just one misstep, one incorrect assumption, and her Sidhe trap - her life's work - could end in vicious disaster. Worse, if Bez fails then humanity may never have another chance to win free of the manipulative and deadly Sidhe ...

Khesh City floats above the surface of the uninhabitable planet of Vellern. Topside, it's extravagant, opulent, luxurious; the Undertow is dark, twisted and dangerous. Khesh City is a place where nothing is forbidden - but it's also a democracy, of sorts, a democracy by assassination, policed by the Angels, the elite, state-sponsored killers who answer only to the Minister, their enigmatic master. Taro lived with Malia, his Angel aunt, one of the privileged few, until a strange man bought his body for the night, then followed him home and murdered Malia in cold blood. Taro wants to find the killer who ruined his future, but he's struggling just to survive in the brutal world of the Undertow. Then an encounter with the Minister sets him on a new course, spying for the City; his target is a reclusive Angel called Nual. Elarn Reen is a famous musician, sent to Khesh City as the unwilling agent of mankind's oldest enemy, the Sidhe. To save her own life, she must find and kill her ex-lover, a renegade Sidhe. Though they come from different worlds, Taro and Elarn's fates are linked, their lives apparently forfeit to other people's schemes. As their paths converge, it becomes clear that the lives of everyone in Khesh City, from the majestic, deadly Angels to the barely-human denizens of the Undertow, are at risk. And Taro and Elarn, a common prostitute and an uncommon singer, are Khesh City's only chance ...

The book is SF, but the first three-quarters take place in an almost fantasy setting. It is not a sequel to PRINCIPLES OF ANGELS, but it is set in the same universe and share the same villains, the Sidhe. When a naked, amnesiac stranger is found outside a remote highland village, he is taken in by Kerin, a widow whose unconventional ways are tolerated because her son Damaru is 'skytouched' - he appears simple, but he is able to affect matter. All skytouched are tested by the Beloved Daughter, the living goddess who rules the world from the City of Light. If he's found worthy, Damaru will become a Consort of the skymothers, the Gods of this world. Kerin and the stranger, nicknamed Sais, accompany Damaru to the City, in the company of a priest who's helping Sais to get back his missing past - but as Sais recovers his memory, he realises that the world does not work the way he assumed - and everyone believes - it does. Worse still, the hierarchy which has kept society stable for thousands of years is rotten to the core. Then Kerin and Sais uncover the true nature of the world, and the unimaginable fate of the Consorts - a fate Kerin will do anything to stop her son sharing.