Flight of the Night Hawks (Darkwar)

The Conclave of Shadows, the undercover organisation charged with the protection of Midkemia, has problems: the evil magician Leso Varen is still at large and thousands of portals to a parallel dimension inhabited by the cruel and fiendish Dasati have been discovered in Novindus. Varen, a powerful and malign magician with the power to possess and transport himself from body to body, and his Nighthawk assassins are plotting chaos and annihilation in the royal house of Kesh. The Nameless One is awakening and needs Varen to help him re-emerge completely and tip the balance of good and evil in the world, plunging Midkemia into darkness and destruction.... The start of a fantastic new series.