The Keeler Image is a short story by Dan Abnett. It is part of the Eisenhorn series.
In the 41st millennium, the past can be even more deadly than the present. The Horus Heresy may have happened ten thousand years ago, but the dark shadows of its history can never be fully excised. Inquisitor Eisenhorn travels to the world of Pallik, where, it is rumoured, a rare and ancient artefact from those terrible times has been put on sale. Eisenhorn and his team are plunged into a deadly game of cross and double-cross in a brand new story by the master of action-adventure fiction.