Spoilers are precisely defined here. Rules vary by the story's medium. Info from television stories can't be added here until after the top or bottom of the hour, British time, closest to the end credits roll on BBC One. Therefore, fans in the Americas who are sensitive to spoilers should avoid Tardis on Sundays until they've seen the episode.
This is a in-universe counterpart of the real world Doctor Who television serial The Stones of Blood that exists within the Doctor's universe. It was mentioned in the short story The Stones of Spookiness, which featured Paul Magrs' fictional counterpart visiting the Rollright Stones, where 'The Stones of Blood was filmed in the real world.
The sixteenth season of Doctor Who also exists within the DWU, but no connection is drawn between the two.
Marked for Life • Iris Wildthyme and the Celestial Omnibus • Iris Wildthyme's Old Flames • The Fabulously Priceless Baubles of the Dalek Supreme • The Maestro of Doom • The Mauve Autodidact • The Gilded Utensils • The Extremely Lively Planet • Iris Wildthyme's Seven of Thirteen • Iris Wildthyme's Goldfinger • Iris Wildthyme's Fabric of Time Itself (MIAOW) • Iris Wildthme's Wheezing, Groaning Enigma
Some categorisation may be based upon conjecture. Real world information should not enter into this. Additionally, a character's role in the DWU can differ from the real world - their placement here is for categorisation.