Hand of Omega story arc
I thought it might be interesting to made an index for this storyline; it will occur over multiple of the Doctor's regenerations.
Lockdown07 | One Virtue, and a Thousand Crimes
Adventures In Lockdown story #7 | BBC Books | 2020 | Covid-19 Lockdown Short Stories
The Corsair collects the Hand of Omega for the Doctor from City Obsidian.
CC0805 | The Beginning
The Companion Chronicles Series 8 Episode 5 | Big Finish audio | 2013 | 50th Anniversary collection
The Doctor escapes Gallifrey with the Hand of Omega and his granddaugter Susan in a Type 40 TARDIS.