Shadowstorm (novel)

Shadowstorm is the second book in the The Twilight War series by Paul S. Kemp.

"The archwizards of Shade Enclave have come out of the desert with a message of peace, and an act of war. Split by petty disputes and causeless feuds, the merchant realm of Sembia is wide open for invasion, and with no shortage of Sembians more than happy to sell out to the Shadovar, can only one man -- even if that man is Erevis Cale -- do anything to stop it?"