Books in the Well of Echoes series

Two hundred years after the Forbidding was broken, Santhenar is locked in war with the lyrinx - intelligent, winged predators who will do anything to gain their own world. Despite the development of battle clankers and mastery of the crystals that power them, humanity is losing. Tiaan, a lonely crystal worker in a clanker manufactory, is experimenting with an entirely new kind of crystal when she begins to have extraordinary visions. The crystal has woken her latent talent for geomancy, the most powerful of all the Secret Arts - and the most perilous. Falsely accused of sabotage by her rival, Irisis, Tiaan flees for her life. Struggling to control her talent and hunted by the lyrinx, Tiaan follows her visions all the way to Tirthrax, greatest peak on all the Three Worlds, where a nightmare awaits her ...Find out more about this title and others at www.orbitbooks.co.uk

The Node has failed, rendering humanity's battle clankers and the Aachim's constructs useless. With the battle lost, hordes of alien Lyrinx are swarming from the tar pits of Snizort, intending to fall upon the survivors and destroy them to the last man. Tiaan, crippled and unable to walk, is held prisoner by the vengeful Vithis, who is determined to extract her geomantic secrets at any cost. For his failings, Nish has been cast out and branded a traitor, while Irisis, accused of high treason, is forced to flee for her life. The fate of humanity is dependent on the survival of one wily old man, the Scrutator Xervish Flydd. But Flydd has been blamed for the defeat at Snizort and is condemned to die a brutish death as a slave - hauling ironclad clankers out of the battlefield mire until his heart bursts under the strain.