The Ultimate Evil
- Valerie finds Finn's outfit to look something straight off of Saturday Night Fever when she first sees it, and she describes Jade demonstrating the Rabbit Talisman's power as turning into a mini version of the The Flash.
- Some quotations from classic literature like The Hunchback of Notre Dame, The Phantom of the Opera, Brave New World and Les Misérables are read out loud to make references to Shendu and Valerie's relationship as it develops.
- The 9th chapter has a quote borrowed from Red Riding Hood.Shendu: that's all that matters, Valerie
Valerie: You know my name
- When Uncle announces that he's going to pick up an apprentice, Valerie asks jokingly if it's going to be like Hogwarts wizard training.
- When Valerie meets Nataline for the first time, she describes the demon hunter as Buffy The Vampire Slayer's long lost cousin.
- When Valerie swims frantically in the flooding Embarcadero Station, she compares the experience to being in close proximity to Jaws.
The Stronger Evil
- Valerie mentions The Terminator when Jade assumes Drago to have a similar reason for coming to the present.
- While trying to meditate, Drago mutters that "the sins of the father are to be laid upon the children".
- When reading the newspaper, Valerie comes across an article about homeless people spreading stories of gargoyles in New York.
- Nat makes a reference to Star Wars by calling Tarakudo's Mind over Matter powers the Force and saying that she's no Jedi.
- Nat's last line in the 11th chapter ("We are in very serious trouble ") is a reference to The Mummy (1999), used by the author as direct defiance of the newest version.
- Nat and Valerie mention the spells Wingardium Leviosa and Petrificus Totalus in the 14th chapter.
- Valerie is called Shendu's "Harley-Quinn rip off" by the burglars' leader in the 17th chapter.