Guardians of Paradise

Most people believe the Sidhe are long dead, exterminated centuries ago when the males of the race rose up and fought alongside the humans subjugated and enslaved by the female Sidhe. But Jarek Reen knows better: he's discovered, the painful way, that the Sidhe are alive and well, and still screwing over humanity. They've already killed his sister, so he's not surprised when he discovers an old friend and her partner are next on the Sidhe's hitlist.
He helps not only to foil the assassination attempt, but also to muddy the scene of the crime, leaving the Angels Nual and Taro sanMalia presumed dead - and free to join his crusade to expose the insidious influence of the Sidhe, and their evil plans to enslave the human race again. Their mission takes them across human-space, from utilitarian hub-points to rich, exotic planets - where they discover that a brilliant vacation spot hides some of the darkest secrets of all.
And that's when they discover how easy it is for the hunters to become the hunted ...