This story is included in:

Legacy Volume 2: Shards

Comic Book published January 2007
as Legacy #8 by Dark Horse Comics:

Issue #8

e-Comic Book
Published 2011 by Dark Horse Digital.

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Synopsis:
Grand Moff Nyna Calixte supervises intelligence gathering for the Empire. Darth Maladi does the same for the Sith. Together they could form an unbeatable team, able to sway the course of a galaxy. That is, if they don't destroy one another first!
From the ambush of the Galactic Alliance's fleet to Roan Fel's narrow escape from assassination, the true story of the Sith overthrow of the Empire can at last be told!

Synopsis taken from Dark Horse, www.darkhorse.com.

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