Having just secured victory in one military campaign, the Legio Invicta heads to the forge world of Orestes for refit and repair, but a twisted force of Chaos Titans ambushes them just as a religious schism begins to tear the Adeptus Mechanicum in two. As tensions rise and casualties mount, Legio Invicta are pushed to their limits in Titanicus by Dan Abnett, which returns in paperback as the second Black Library Reader’s Choice winner for 2024.