Continuity mistake: On Page 69 (Part One: Blood Sport) the Owner of the Kelly Fruit Company is called Hubert, but on page 217 (Part Three: Wreckage), his name changes to Henry.
Continuity mistake: At the start of Part 6, the men let Percy out of the closet. They take the tape off his mouth and he starts to rub his lips, then lowers his hand to speak. Problem is he's still in the straight-jacket at this point.
Continuity mistake: In Part 3, Chapter 33, two news reporters come to see Annie and interview her about the missing policeman. She walks out with a shotgun full of "double-ought buck", fires a warning shot, and then when she re-enters the house she magically has a rifle, not a shotgun.
Continuity mistake: The Longsword Fighter that landed in Ascendant Justice's hangar bay is repeatedly referred to as a Pelican on pages 75, 93, 95 and more.
Factual error: Roland comes from the mountains in the east, arrives at the Great Western Sea, and then decides to travel north (Chapter 1, section 3). This means that as he heads north, the eastern mountains should be on his right and the western sea should be on his left. But as he walks, the sea is on his right and the mountains are on his left (Chapter 1, section 4).
Continuity mistake: In chapter 18 Scudder visits Dr. Nadler at his Manhattan office but in chapter 32 we hear that Nadler was in Martha's Vineyard at the time.
Factual error: During the part of the book where Elspeth Lucas is leaving the Vanguard Motel, she is driving a Corvette. Theo Packman, a spy, has been forced to hide in the trunk of her car because the police have arrived at the motel searching for him. When Elspeth is leaving, the police question her, and shine a flashlight into her car, searching for Theo in the front and back seats. Problem is, Corvettes have never had back seats. They have been a two-seater sports car since they began production in 1953.
Factual error: The author reveals her limited Spanish when she has a character, purportedly a native Spanish speaker, saying to Ingrid, "¿Cuál es su nombre? Su hija es más guapa." Which translates to, "Which is her name? Your daughter is more beautiful." But in the book, those words are rendered as, "What is her name? Your daughter is very pretty." Not only does the author a) mistranslate the Spanish, but she b) gives the woman words no native speaker of Spanish would say.
Factual error: In Chapter 7, Andrea's boyfriend Alex sends her an e-mail to tell her that his six-year-old student has slashed a classmate on the arm and that he will have to miss their planned dinner in order to deal with the situation. Andrea thinks about how bad she feels for Alex and his fourth grade student. Fourth graders are 9 or 10 years old, not 6.
Plot hole: Early on in the book the NSA is described as a top secret agency, an agency very few Americans know exist. However throughout the rest of the book there are many references to groups who openly protest against the NSA, bad widespread publicity, and the majority of Americans being against the agency. If hardly anybody knows about the NSA then how can there be so much open debate about it?
Other mistake: Near the beginning of the book, an imp says 'Are you going to warp today, Runt, or will pink flowers grow out of my armpits?' But later on in the book No. 1 says 'Pink! We don't have a word for that colour in the demon commonspeak'.
Continuity mistake: On page 159, we are introduced to 'Ensign William Lovell', but later on, on page 188, Captain Keyes calls him 'Ensign Michael Lovell'.
Continuity mistake: Ian Malcolm dies in Jurassic Park. In the epilogue it says that the Costa Rican Government would not "permit the burial of John Hammond or Ian Malcolm", yet he's somehow back to life for this book, presumably because the character in the movie was popular.
Continuity mistake: In Chapter 4, Garraty thinks about Jan and her long, dark hair. Later, in Chapter 6, he once again thinks of her, this time with her long, blonde hair.
Factual error: Caesar and Brutus grow up together in the book, being the same age. Caesar was actually born 15 years before Brutus and some historians believe he could have even been Brutus' father.
Continuity mistake: In Chapter 4 page 24, it says Conner's last name is Griffith, with a TH, but in the last page, page 212, the Pop Quiz says his name is Conner Griffin, with an N.
Factual error: Among the monkeys and apes waiting in Africa to be cured by the doctor, orang-utans are mentioned. But orang-utans are not native to Africa, and it is highly unlikely that they might have crossed the Indian Ocean all the way from Borneo.
Plot hole: The whole premise for Taylor's being forced to go on the lam with her daughter is that she doesn't have anywhere to go - she can't go to her mother Alice's, since Alice is leaving her husband (i.e, Taylor's stepfather) and so this seemingly makes that house not an option. But it's stated specifically that it's Alice's own house Harland moved into - so it makes no sense at all why Alice can't either go back to her own house, or kick her soon-to-be ex-husband out, or have Taylor share the house with her soon-to-be-ex-husband. It makes no sense except as a plot device.
Continuity mistake: In "the Valley of Horses" Jondalar tells Ayla that the man he beat up had had Zolena as his donii woman the previous year and was still in love with her. In this book he says that the other man wanted Zolena as his donii woman the same year she became Jondalar's, and that the reason for his jealousy was that she picked someone else.
Plot hole: When Lowrie first shows Meg his wish list, she says that they would have to travel the length and breadth of Ireland to complete them. However, she doesn't know what two of them mean so how does she know that they're going to travel that far.