Quicksilver, by Callie Hart, has quickly become one of the topfantasybooks of the year—and also one ofthe most popular books on BookTok. Garnering millions of fans world-wide since its June 2024 release, it comes as no surprise thatthe rights for aQuicksilveradaptation were bought by Netflixfor a whopping seven-figure deal. TheQuicksilverdeal marks Netflix’s recommitment to the fantasy genreafter a series of big cancelations. And as anticipation surrounding the movie adaptation ofQuicksilvercontinues to grow, so does excitement for Hart’s second novel in the series.
Thankfully, Callie Hart recently teased the second book in herFae & Alchemyseries at an event with UK retailer, Waterstones. However, when speaking about theQuicksilversequel, Hart was quick to apologize to fans, stating that the book is “mayhem from page one, until the end”. While she has not yet released further information about the plot of the second book,Hart’s cryptic message raises several concerns about what to expect nextin thefantasy book series.

Callie Hart Is Already Apologizing For Scenes In Quicksilver’s Upcoming Sequel
Fans Need To Prepare For Several Tear-Jerking Scenes
The sequel to Callie Hart’sQuicksilveris highly anticipated, but it was just announced the second book in the series won’t be released until late 2025. While Hart is still working on theQuicksilversequel, she has revealed a few teasers as to what fans can expect in the second novel. During the event with Waterstones,Hart explained that the second book in the series would begin with extremely high stakes, and include several tear-jerking scenes she apologized for ahead of time.
Netflix’s Quicksilver Adaptation Is Exciting, But The Books Already Raise A Major Concern
While the news of Netflix’s Quicksilver adaptation is exciting, the books have already raised one major concern for the project’s future.
With so much time until the next novel in theFae & Alchemyseries releases, Hart’s apologies have caused faithful readers to worry over what will happen next. Hart did an incredible job of building outQuicksilver’s fantasy world in book one, and developed several beloved characters. However,the narrative has yet to see any significant losses thus far. Heeding Hart’s warning, it’s likely fans will need to prepare themselves for the likelihood of character deaths in book two.

Callie Hart’s Tease Means Quicksilver Will Likely Kill Off One Or More Beloved Characters
Book Two May Set The Tone For Book Three
Severalrecent fantasy bookseries are unafraid to kill off fan-favorite characters—and this often adds a more realistic element to the narrative. However, it also means readers will be heart-broken to see their favorite characters leave the series. While several of Hart’s characters are well-liked,her latest comments imply that no character is safe from this fate in theQuicksilversequel. As Hart has explained, the story will begin with “all gas, no brakes”—seemingly referring to the high stakes the second novel will revolve around, as well as implying the story could beginin media res, with readers dropped right into the action.
It would be devastating to see any of Hart’s cast of characters succumb to this fate, but as the story is only just kicking off, it’s unlikely they will all make it to the end.

There are several side characters that could be at risk in the second novel, and all of them have equal importance to the overall plot. While some hold smaller roles, their character development has already secured their place as a beloved character—including Archer, Kingfisher’s fire sprite servant and friend. It would be devastating to see any of Hart’s cast of characters succumb to this fate, but as the story is only just kicking off, it’s unlikely they will all make it to the end.
A Character Death In Book Two Could Be What Saeris Needs To Develop Her Power
Quicksilver Only Scratches The Surface Of Her Power
ThroughoutQuicksilver,Saeris Fane is hesitant to learn anything about her Alchemist abilities, often refusing to accept that she has any sort of power. However, after Saeris opens the gateway between realms, she can no longer deny the power she has the potential to wield. Throughout the series, she attempts to control the quicksilver to fulfill her bargain with Kingfisher, but it isn’t until the end of the first book that she truly understands how to do so.
By the end of the book, Hart makes it rather obvious that Saeris is more powerful than once believed—but the series has yet to dive into her true potential. WhileQuicksilverjust scratches the surface of Saeris' power,it’s likely a major character death in book two could be a driving force in further developing her character arc and abilities. AsQuicksilver’s ending finds Saeris becoming half-fae and half-vampire, the sequel to Hart’s best-sellingfantasywill be one of the most-anticipated books to release next year.
