TOS - Cloak
Not bad. Written quite cleverly in that the Section 31 involvement is very cleverely hidden throughout. Section 31 in this book is portrayed how a secrect government organisation should be portrayed. Not as an open secret as DS9 made you feel.
TNG - Rogue
The most enjoyable of the series as far as I'm concerned. Set just prior to First Contact it deals with Lt Hawk (from that film), Admiral Marta Betanates and Commander Cortin Zweller (from TNG ep Tapestry). Also got the Romulans, a fairly cool alien race and is genuinely a fun read.
DS9 - Abyss
Not too bad. Pretty much slots into the new DS9 series so if you're reading those books it's pretty important. Set after the end of the series it pretty much deals with Dr Bashir (again) and involves a renegade genetically engineered scientist (who's mad) going AWOL from Section 31. On par with the rest of the DS9 books prior to the Gamma series (when they went into a higher gear as far as I'm concerned).
VOY - Shadow
Total waste of paper. A nice idea for a plot but just badly written. The idea of a Section 31 agent on Voyager just rubs. Especially when you discover who she was in the series. Don't bother.
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