Shield of the Gods
Shield of the Gods is a Star Trek: Department of Temporal Investigations eBook novella – the fifth book in the series – written by Christopher L. Bennett. Published by Pocket Books, it was first released in .

Summary 
From the book jacket
The stalwart agents of the Department of Temporal Investigations have tracked down many dangerous artifacts, but now they face a greater, more personal challenge: retrieving a time-travel device stolen from their own vault by a rogue agent of the Aegis, a powerful, secretive group that uses its mastery of time to prevent young civilizations from destroying themselves. Blaming the Aegis itself for a tragedy yet to come, this renegade plans to use the stolen artifact to sabotage its efforts in the past, no matter what the cost to the timeline. Now the DTI's agents must convince the enigmatic Aegis to work alongside them in order to protect history–but they must also wrestle with the potential consequences of their actions, for preserving the past could doom countless lives in the future!

Background information 
 Cover design by Alan Dingman.

External link 
 

eBooks