A temporal projection of the fourth Doctor warns the seventh
Doctor and Ace about the Timewyrm, a cybernetic living data-eater
can take over minds. In ancient Mesopotamia, the Doctor and Ace team
up with Gilgamesh and Enkidu to help free the city of Kish from the
posing as the goddess Ishtar. But what is Ishtar's connection to the
Pg 22 "A long burgundy-coloured coat" The fourth Doctor (but see Continuity Cock Ups).
Pg 205 There's also a cameo by the third Doctor, who says "Jehosophat" (The Five Doctors), "a scarecrow" (The Five Doctors) and rubs his chin (more times than you could imagine).
A field near Kish, Mesapotamia, 2700 BC (twice, on pages 47 and 216-217).
Pg 229 The TARDIS lands in London at the end of the book (leading in to Timewyrm: Exodus).
Pg 1 "People of Eridu, hear me!" The opening exhortation to the reader is very similar to the section in the novelisation of The Curse of Fenric, which tells of how the Doctor originally trapped Fenric in a flask.
Pg 19 Ace trying to find her way in the TARDIS: "Toss a coin? Guess? Try a bit of logical thinking?" The first thing she thinks of is the thing that Adric did to the TARDIS itself when it was lost in E-Space in Warriors' Gate.
Pg 22 "I've been editing a few of my useless memories" This is the first appearance of this, although the Doctor will do so again in later NAs. It's a very contrived way to introduce the characters, but it provides a handy get-out for some of the continuity problems.
Pg 33 "'I'm not a human being,' he said off-handedly, over his shoulder. 'I'm a Time Lord.'" A quote from Pyramids of Mars, albeit delivered with rather less gravitas.
Pg 35 Reference to Leela.
Pgs 35-36 "He - me - had to enter the Matrix when Gallifrey was invaded by the Sontarans." The Invasion of Time.
Pg 37 "It's in ancient High Gallifreyan" Presumably similar to Old High Gallifreyan, first mentioned in "The Five Doctors".
Pg 38 "Ace felt like she'd been kicked in the brain by a bad-tempered Cyberman." Silver Nemesis (but see Continuity Cock-Ups).
"They had fought the Master [...] on the planet of the Cheetah people." Survival.
Pg 39 "Iceworld [,...] I was a waitress." Dragonfire.
"Then there's something about Fenric." The Curse of Fenric.
"The Cloister Bell. [...] It's not sounded since - since the Logopolis affair." The Cloister Bell was first heard in Logopolis (but see Continuity Cock-Ups).
Pg 41 Cameo appearances by the Brigadier, Victoria and Jamie.
Pg 42 Cameo by Katarina.
Pg 45 "And if we don't stop it, then there might not be an Earth as you know it. It'll just be dust blowing in the cosmic winds." Pretty much what the Doctor showed Sarah Jane in Pyramids of Mars.
Pg 58 "He reminded her uncannily of Nimrod..." We get a summary of Ghost Light.
Pg 77 "It's mostly a whiff I get. Evil, pure evil." Anyone who reads this can't but help thing of 'Evil, evil since the dawn of time... puuuuurrrrrrre evil' from The Curse of Fenric. And wince.
Pg 92 "You can explain to them about my respiratory bypass system" First mentioned in Pyramids of Mars.
Pg 134 "I've removed the time path indicator from the TARDIS" Used in The Chase and The Daleks' Masterplan.
"It had been the time the Daleks were chasing him, seeking to regain the Tarranium Core he had stolen from them." The Daleks' Masterplan.
Pg 140 "The Doctor tried to apply all the techniques that his old mentor K'Anpo had taught him" Planet of the Spiders.
"It had been at the time the Sontarans and their gullible henchmen the Vardans had managed to invade Gallifrey." The Invasion of Time.
Pg 141 "His old companion Leela and that silly husband of hers" The Invaison of Time.
"Katarina, killing herself to save a Universe she didn't even comprehend; Sara Kingdom, dying to defeat the daleks; Adric, perishing in a fireballover prehistoric earth to stop the Cybermen from destroying the human race." The Daleks' Masterplan, Earthshock.
Pg 161 The building of a punt instantly makes one think of Shada or The Five Doctors. Or both.
Pg 164 "Right now, a character called Nimrod is sleeping." Ghost Light.
Pg 166 "The wonders of Iceworld, the terrors of Paradise Towers,the evil of the Psychic Circus" Dragonfire, Paradise Towers (see Continuity Cock-Ups), The Greatest Show in the Galaxy.
Pg 168 Another brief reference to Iceworld, from Dragonfire.
Pg 172 "Ace could still recall the cold grip of the Cybermen she had faced quite recently." Silver Nemesis (or possibly, with hindsight, Illegal Alien).
Pg 202 More references to Sara, Katarina and Adric. It's the DWM school of 'Who the Doctor regrets dying', because DWM told us these were companions, despite the fact that, Adric aside, they're less relevant than most of the other people the Doctor's ever met. It's a very small list of regrets though: only one person ever gets added to it (Oscar Botcherby, if you must know).
Pg 206 References to the Brigadier, Jo and Sarah.
"Maybe I should reverse the polarity of the neuron flow?" It's not clear if this is a typo or a pun on the third Doctor's favourite phrase.
Pg 207 References to Sergeant Benton and the Brigadier.
Pg 208 References to Sergeant Benton.
Pg 209 References to Liz Shaw and Jo.
Pg 211 "It's theoretically impossible, but so is the flight of the bumblebee, and he manages well enough." The Doctor still (erroneously) thinks that it's aerodynamically impossible for the bumblebee to fly, as he did in The Robots of Death. Apparently it's not, because the wings create little vortices of air which in themselves provide more updraft for the wings to then settle on and use again, if you see what I mean. It's actually a silly discussion anyway: aerodynamics or otherwise, the bumblebee flies, as proven by experimental data (take one bumblebee; does it fly?). It is now, and was then, tremendously arrogant of the Doctor to think so - just because we don't know how, doesn't mean there isn't a reason.
Pg 214 "Secondary control room. [...] It's a rather nice wooden affair." First seen in the Masque of Mandragora.
Pg 215 "So what I'm doing is reconfiguring the interior dimensions, losing some of the TARDIS's mass, which gets converted into energy for us." Castrovalva.
"E equals MC squared, or something like that. Or was it cubed?" The nonsensical physics of the Vortex (or something) from The Time Monster.
Pg 216 References to Dodo and Jo.
Pg 219 "Back to the TARDIS and the food machine, eh?" The food machine from The Daleks and beyond.
Pg 222 "Taking off from the Earth should have gained us a bit of time." As it did in The Chase.
Reference to the Master.
Pg 224 "The Chronovores. [...] I met one once." The Time Monster.
Pgs 224-225 " I heard the Chronovores whispering in the time-winds" Time Winds were seen in Warriors' Gate.
Pg 226 "Time ram." Also used in The Time Monster.
Pg 230 "We are in London, then." This leads in to Timewyrm: Exodus.
OLD FRIENDS AND OLD ENEMIES
The Brigadier, Victoria and Jamie appear on page 41. Katarina appears on page 42.
NEW FRIENDS AND NEW ENEMIES
Qataka/Ishtar/The Timewyrm. The Timewyrm appears in the following three books and Ishtar appears in Happy Endings.
Gilgamesh, Enkidu, Avram, En-Gula, Ninani.
The Timewyrm, formerly Ishtar, formerly Qataka. She's capable of insinuating herself into other people's minds. She's like a super advanced computer program, capable of being incorporeal or solid and with the power to move throughout time.
Mesapotamia, including the Kingdoms of Kish and Uruk, starting two days after the Feast of Shamash, 2700BC.