The Doctor says that the Weeping Angels 'should know better than to put in a trap', a reference from The Time of Angels.A reference to the Doctor having worn a Fez in The Big Bang. Future Rory is forced to wear a Fez on orders from The Doctor who declares him 'Fez Rory'.The method in which the Doctor defeats the Angels echoes how he defeated them in Blink.This indicates that the Doctor built a new, identical device. After its first appearance, it was destroyed in the novel Ghosts of India. His previous Incarnation stated that it could cause them to explode in Blink. The Doctor claims that the Timey Wimey Detector's ability to boil an egg isn't a side effect, but rather a feature.The Weeping Angels first appeared in Blink.

Additional archives: 27 October 2020.Weeping Angels, on display at a Doctor Who exhibition The Cloister Library - The Bodysnatchers Archived 4 March 2014 at the Wayback Machine.The Doctor is still searching for a copy of The Strand in the next novel, Genocide.The way the Doctor changes the subject when asked about Sam in the epilogue implies that this occurs during the period they are separated between Longest Day and Seeing I the latter novel also implies this.The State of Temporal Grace is mentioned as the Doctor has repaired it, preventing the Skarasen from acting aggressively.The HADS (Hostile Action Displacement System) is mentioned.Tuval claims Zygor was destroyed when the Zygons enemies, the Xaranti caused a stellar explosion, probably by destroying its sun.The Zygons' home planet is named as Zygor.When the Zygons destroy the Doctor's Sonic Screwdriver he comments on how long it took him to build another the last time, referencing the fifth Doctor story The Visitation where the Terileptils destroyed the original.Leela is mentioned, and implied to have children.

It is revealed in this story that Sam's room (given to her by the Doctor in the previous novel) is actually Nyssa's old room.

This story also reunited the Doctor with Professor George Litefoot from The Talons of Weng-Chiang.

In 2013, The Zygons appeared in the Eleventh Doctor TV story The Day of the Doctor, to mark 50 years of Doctor Who. They have also appeared in the Tenth Doctor novel Sting of the Zygons and the Big Finish audio play The Zygon Who Fell to Earth, which references the events of this novel.

The Zygons appear for the first time since the 1975 television serial Terror of the Zygons.

The Doctor, Sam and an allied professor work together to stop alien bodysnatchers, grave-robbers and much worse plaguing London. The Bodysnatchers is an original novel written by Mark Morris and based on the long-running British science fiction television series Doctor Who.

Doctor Who by Mark Morris