The history of Earth has been splintered, each splinter vying to become the prime reality. The Doctor has a plan to ensure that the correct version of history prevails - but it means breaking every law of Time along the way.
Fitz and Anji.
Pg 20 Near the Clifton suspension bridge, Bristol, Year 151 .
Pg 152 The cellar of Malahyde's house, Year 5 .
Pg 162 On a hill in Totterdown, Year 151 .
Pg 185 The Floating Harbour, Bristol, Year Nought .
Pg 207 The Bristol Downs, 22 October 1831.
Pg 209 The Eternium, contemporaneous with 1831.
Pg 212 The Eternium, contemporaneous with 2003.
Pg 225 Near the Totterdown gate, either Year 160 .
Pg 241 The cellar of Malahyde's house, Year 5 .
Pg 262 It's not actually a materialisation, but the TARDIS winds time backwards to 23 October 1831.
Nothing essential, although this does follow on from the end of The Domino Effect.
Pg 23 "We're clearly in some other reality where people like me are freaks. Again." The Domino Effect.
Pg 26 "I could do with a few more session of torture, you know." The Domino Effect.
Pg 34 "This time, in this reality, she was determined they wouldn't get the better of her." The Domino Effect.
Pg 74 "It's like that time when we met those people who were turning into clocks - people ageing to death in seconds." Anachrophobia.
Pg 75 "The same thing that happened to the clock people?" Anachrophobia.
"There's more than one dimension of time" As we learned in The Space Museum.
Pg 83 "The Doctor and the priest shook hands. Why did Fitz get the strangest feeling that the Doctor was making a pact with the Devil himself?" Echoes of Logopolis.
Pg 84 "Say what you want about the alternative Edinburgh, at least there had been people there." The Domino Effect.
Pg 114 "Fitz gasped. 'I can't swim!' 'I thought Anji had been teaching you!' 'Two lessons, Doctor, and all I could manage was to stay afloat - just about!'" This ties in with Fitz's inability to swim in EarthWorld (pg 194), although it contradicts his being able to in The Crooked World (pg 212).
Pg 161 "Humans can't survive in the Vortex. The Time Winds would tear them apart." Warriors' Gate.
Pg 186 "Or - a dark thought - Sabbath." Sir Not Appearing In This Book, thankfully.
Pg 197 "A heat-hazed plain, baking under two suns, one tiny and bright, the other like a giant bloodshot eye." Uncertain reference.
Pg 237 "Something about a planet, ending - a woman who wasn't a woman - 'meet me in St Louis' - Anji - a cave of ice..." The Ancestor Cell, Compassion, the Earth arc, Escape Velocity, Time Zero.
Pg 239 "I used to work in something called a garden centre" The Taint.
Pg 265 "He remembered his mother, in a dim, dusty room in a big house - an institution - " The Taint.
OLD FRIENDS AND OLD ENEMIES
'Natasha' who appears on pages 254-255 (living inside the TARDIS) is Trix, seen previously in Time Zero and The Domino Effect.
NEW FRIENDS AND NEW ENEMIES
Jared Malahyde, Isambard Kingdom Brunel.
Pg 145 Malahyde's house, Bristol, October, Year 5 . (Time passes at a different rate inside the house.)