Factual error: In chapter 9, 1941 during world war II, Chuck Dewar is stationed in Hawaii where he windsurfs, although windsurfing was first invented 20 years later (in the 60s).
Factual error: In Chapter 14, Cato is being awarded a grass crown for saving his centurion and the standard of his company. The grass crown was only given to generals or other higher officers, for rescuing an entire legion or army, and it had to be acclaimed by the entire legion he rescued. As an optio, Cato would be ineligible for a grass crown, his actions would not qualify for it, and he is said to be unpopular with his company, so a unanimous vote is highly unlikely.
Plot hole: In chapter 19, while talking about Leah Rose, it is stated "She and Rayford had spotted the seal of the believer. Otherwise she might have never given him the time of day." Fact is, when she is introduced in the series, it is Buck whom she meets and they notice the mark of the believer on each other's forehead. When she meets Rayford much later, they both already know each are believers.
Continuity mistake: When the Kingdom Keepers are inside the It's A Small World attraction, and the puppets come to life, the book states that a doll locked onto Finn's arm, chomping down hard enough to draw blood. However, at the girl scout car wash, Finn shows Amanda his bite marks by lifting up the leg on his shorts.
Other mistake: In the hardcover edition, published 2008. The mistake is on page 100 - "And when did faux mitzvah enter everyone's vocabulary accept mine?". 'Accept' should obviously be 'except.'
Other mistake: In the Freddie Fear comic near the end, all of the speech bubbles in the last page of the story are missing, even though it's obvious that people are talking.
Factual error: The main character, a WWI U-boat captain, mentions his vessel as having chemical air regenerators, an underwater airlock for divers to leave by, and of course dive suit(s), but I don't believe such craft of that era had any of those.
Continuity mistake: After the "adventure in acceleration" at Adrian, the Hail Mary is effectively upside down (Ch. 20). Then Grace gets "sick of living in the Poseidon Adventure" and rights it-meaning the storage area is at the bottom again. He goes in there to fix a leak, then "climb[s] back down and wince[s] the whole time." He should be climbing up or out, not down. Also, in Ch. 22, when Grace is in there again (finding Taumoeba poo), "Rocky calls out from below"-but Rocky should be above him, not below.
Continuity mistake: In the second chapter it states specifically that Lillith is texting on her iphone however after receiving a text from a friend she says she closes her phone or snaps her phone shut suggesting that she is using a flip phone.
Factual error: The book mentions Bilbo's sword as being originally made as a dagger for an elf. The problem is, proportional to the wearer, that doesn't work, weapons and tools have to be made with the user's exact size always in mind. The blade or handle would be too thick, or something else would be off. I know this from trying to use a figurine sword to open envelopes.
Suggested correction: The origins of Sting are largely unknown. Even though it was made by elves doesn't mean that it was meant for elves. The book doesn't say it was a dagger for elves, just the size was comparable to one. It's only said that it was very small for Elf standards and that means it has a small handle perfect for a Hobbit hand.
Factual error: The geographical issues begin about mid-way through with the characters at Glacier National Park in Montana for a wedding. When everyone begins to leave, Nick is taking the scenic route back to New York via car. Harper is getting a ride to South Dakota to catch a plane. The scenic route in Montana is Hwy 2, which the author labels as US Route 2 (technically correct but Montanans call it Hwy 2). Continually talks about 2 lane roads. Yet the next location the car stops at is Sleeping Elk. Higgins has them spending the night there. Sleeping Elk is a smaller than small town that is by the Interstate which entails getting off another Interstate to make the connection. Sleeping Elk has no motels and is less than 10 minutes from Bozeman. Higgins makes it sound like they are in the middle of nowhere when in reality, they are not. Also never mentions the passing by of other large cities including the state capital but rather mentions the smaller cities that are on Hwy 2.
Other mistake: On page 197 the author writes "Margaret opened her eyes to sickly dawn...the clock read 6:45 p.m.". PM would be sunset, not dawn.
Other mistake: When Eliza is talking to Midas at the July 4th party, in response to her question the text reads 'Marcus chuckled' instead of Midas.
Continuity mistake: In the first chapter, when the Thunderclan hunting patrol meet the Shadowclan border patrol; the Shadowclan cats taunt the Thunderclan cats and Birchfall jumps on Snaketail. Snaketail's apprentice Scorchpaw then jumps on top and Hazeltail joins in to help Birchfall. It says: 'Hazeltail launched *himself*' but it says in the Allegiances section that Hazeltail is a she-cat.
Continuity mistake: In the epilogue, when Chad is speaking in court, Sharon's attorney says that Ann's mother died "'last year'". During the flashback in chapter three, when the group is at the river before hiking to the cliff, Ann's mother is described as having died "a couple of years" ago.
Continuity mistake: About halfway through chapter 12, when they are walking back up the lane after Grimma attacked the fox, Sacco says a couple of sentences - Sacco is at the quarry.
Factual error: On page 296, Clapton mentions rehearsals for the Cream reunion began in May 2005 and lasted almost a month. But the reunion itself was held the first week of May, so it should say rehearsals began in April.
Continuity mistake: In Chapter 2, Hester Latterly tells Mary Farraline about her brother James who was killed in the Crimea. But in previous books (for example, The Face of a Stranger), her brother who was killed in the Crimea was called George.
Factual error: During the murder trial in part three, when a prosecution witness of Yuki's is called back to testify for the defense, he is sworn in. But having already testified, he wouldn't have to be sworn in a second time; the presiding judge could simply remind him that he is still under oath.