“Issola” jumps forward in time again, to a point some time after the end of “Orca”. But it also represents a bigger jump, to a completely different frame of reference. At various points throughout the series, Brust has alluded to a larger science-fiction backstory for Dragaera, featuring the fearsomely powerful Jenoine. The suggestion is that the Dragaerans were the result of Jenoine experiments in implanting genes from the unusual native fauna into humans; the gods, meanwhile — or at least the oldest and strongest ones, like Verra — were Jenoine servants, whose revolt freed Dragaera from Jenoine control. In “Issola”, what we learn is that this is not merely ancient history: the Jenoine are still around and still trying to retake control of Dragaera, and one of the lesser-known functions of the Empire is to work with the gods to prevent this. So when Morrolan and Aliera disappear, probably kidnapped by the Jenoine because Blackwand and Pathfinder are sufficiently powerful to represent a danger even to them, Lady Teldra — the namesake of the book — shows up to ask Vlad to come and look for them. Vlad is the best choice because he has Spellbreaker, and as we found out in “Dragon”, Spellbreaker is not just a fancy shape-shifting chain that breaks spells: it is potentially part of a Great Weapon itself (or, more confusingly, may once have been part of one in the past). This means that it can be used to track Blackwand — Great Weapons have an affinity for each other — and after a quick chat with Sethra to fill Vlad, and the reader, in on some of the details, Vlad and Teldra are off to another planet, or possibly plane of existence, to try to get Morrolan and Aliera back. What follows has, surprisingly, a fair amount of resemblance to “Dragon”: there’s a lot of sitting around and talking, with occasional intervals of largely improvised action, culminating in a final battle, in a very high-fantasy style, at the Lesser Sea of Amorphia. But it doesn’t work as well as “Dragon”, or, in my opinion, any of the previous books in the series. Part of the problem is the Jenoine, who are supposed to be a different order of being than humans or Dragaerans, so powerful as to be incomprehensible. The issue is that this makes them bad villains: they’re dangerous, but also blank. Teldra can talk to them — diplomacy is an Issola thing, so she knows a lot of languages — though mostly they don’t seem to be that interested in talking, so their reactions can only be guessed at, and their goals and motives have to be inferred. Lady Teldra has a somewhat similar problem: she has spent centuries, or possibly millennia, perfecting the art of saying the polite thing in such a way that her interlocutor thinks that she really means it. The result is that it’s impossible to know what she really thinks: she has some long conversations with Vlad, but since her affect never changes, it’s unclear if she is telling him her innermost secrets or just continuing her role as the ultimate hostess, regardless of the fact that she is currently chained to the wall of a prison somewhere very far from home. Her motives, in fact, are even more difficult to figure out than the Jenoine’s. For one thing, why is she here at all? Ok, she speaks Jenoine, but she doesn’t wield a Great Weapon, or even a Great Weapon precursor, meaning that she’s just about useless in the big final battle. Is she in love with Morrolan, or deeply loyal to him out of some kind of feudal obligation, or motivated by something else entirely? I’ve read this book several times by now and still have no idea. The story moves well, and the sudden change of perspective — compared to being hunted by the Jenoine, being hunted by the Jhereg no longer seems quite as scary — is interesting, but the two big blanks in the middle of it make it one of the series’ weaker efforts.