The two remaining book-length novels, Traveler (2016) and Disruptor (2017), completed the trilogy by following Quin’s complicated journey with her best friend Shinobu, her to-be enemy John, and the Young Dread who awakes within the stream of time to challenge the Seekers.

Dayton withholds information from the reader, revealing only "hints and a bit of foreshadowing"[3] that Quin has been trained as an assassin, to work for her "brutal, manipulative father".

[5] Publishers Weekly called Seeker a "powerful beginning to a complex family saga",[4] while Teen Vogue included the novel in its 2015 "13 YA Debuts to Have on Your Radar This Year" list.

[6] In 2013, only a week after the publishing deal had been signed with Dayton for high six-figures by Delacorte Press, Columbia Pictures announced it had purchased the film rights to the novel and that Mark Gordon was attached to produce any cinematic adaptation.

[9] According to Isabella Biedenharn of Entertainment Weekly magazine: "Traveler continues the story of Quin Kincaid, a Seeker who, on the night of her Oath, learned that her family's legacy is not quite what it seemed".