One of the major events occurring during Destiny's Borg invasion of the Federation and neighbours was the last-minute sparing, by Erika Hernandez, of five major worlds from obliteration. These worlds--Vulcan, Andor, Rigel IV, Q'onoS, and Coridan Prime--were hit hard, with tens if not hundreds of millions of fatalities and numerous major cities destroyed, but they remained fundamentally intact. In subsequent Treklit novels, it has seemed as if Coridan might not have fared as well as other worlds. In a 2011 post here, I mentioned that "in her post-invasion speech Bacco mentioned Coridan in the same breath as worlds like Risa and Ramatis which we know to have been sterilized, and novels like A Singular Destiny and the same Watching the Clock seem to imply that Coridan was wrecked to a greater extent, with Coridanite Starfleet officers left to cope with the sight of their world's devastation (destruction?) and descriptions of the surface as "ruined"." Later novels have suggested that Coridan civilization seems to have survived, but that could as easily be due to Coridanite-settled worlds elsewhere surviving as to Coridan Prime's survival. The question has been settled. In Acts of Contrition, much of the action is set on Coridan. It is an inhabited planet; it has a substantial population; it has a capital city; it is sufficiently organized to support, among other things, a medical infrastructure capable of tracking and controlling an insidious epidemic. Coridan Prime still lives. The world of Coridan has had a very unfortunate history in Treklit, suffering multiple genocidal attacks. It's nice that, despite everything that has been thrown about it, it survives.