The Empty Chair (Star Trek: Rihannsu, Book 5)
Diane Duane is the author of numerous science fiction and fantasy novels, amongst them the fan-favourite Star Trek titles DARK MIRROR and the 5-volume Rihannsu series of novels exploring the world of the Romulans (the first four volumes of which are now available as the omnibus THE BLOODWING VOYAGES 1416525777) released together with the fifth volume (THE EMPTY CHAIR 1416508910) in January 2007.