Warhammer 40k Ghost Warrior Prose Novel

"Missing for millennia, the craftworld of Ziasuthra has suddenly reappeared from its sanctuary in the warp, and its denizens wish to make contact. Led by the Spiritseer Iyanna and Yvraine, the Emissary of Ynnead, a small force of craftworld aeldari head to Ziasuthra to open negotiations with their brethren. Behind their surface desire to help, however, Iyanna and Yvraine have a stronger motive: they are seeking the final cronesword, which could lie hidden behind ancient web portal on this craftworld. But how co-operative will the mysterious Ziasuthrans prove to be, or do they too have their own agenda?"