Warning: This article contains spoilers for the first Fae & Alchemy book, Quicksilver.
Mercury by Callie Hart has made several headlines in recent weeks, as the rights to the popular fantasy book series were recently acquired by Netflix. Netflix news Mercury the adaptation has generated a lot of excitement among fans, as BookTok's favorite cast of characters and dynamic magic system will come to life on screen in the near future. Quicksilver's ending already left readers hungry for more, and Netflix's announcement only further propelled Hart's sequel into becoming one of the most anticipated fantasy books of 2025.
Mercury is a highly addictive enemies-to-lovers novel that follows the main protagonist, Saeris Fane, as she inadvertently opens a portal between realms. This kick-starts the narrative, and the plot's fast-paced action and steamy romance scenes make Hart's Mercury impossible to put down. Quicksilver's final twist revealed many questions that Hart has yet to answer – and while she shared little of what to expect from the plot of the second book, her latest Mercury Sequence teaser can help give readers a clue about where the narrative will go in the future Fae and Alchemy novels.
A Quicksilver Sequel Is Confirmed for Fall 2025
Hart stated that the second book is almost finished
Fortunately, the wait for Hart's Mercury the sequel isn't too far off, since Callie Hart Author Website confirms a fall 2025 release. Originally, Hart was planning to release the second book in Fae and Alchemy series in November 2024but ended up postponing the release to focus on perfecting the narrative. In an age where authors are expected to release books annually like clockwork, it's refreshing to know that Hart is taking the time to focus on his work and build a following that will be worth the wait.
This is an absolutely crucial step for any successful fantasy book series and gives the novel the best chance of reaching the standards of its predecessor.
At a recent event with UK retailer Waterstones Hart confirmed that the Mercury the sequence is almost finished– giving the sequel plenty of time for edits and proofing before its release date. This is an absolutely crucial step for any successful fantasy book series and gives the novel the best chance of reaching the standards of its predecessor. Living in a culture of on-demand gratification, the long gap between releases may seem a little daunting, but rest assured that the wait for MercuryThe sequence will provide fruitful results.
The second Fae & Alchemy book doesn't have a title or cover yet
These details may not be released until closer to publication
Hart kept details surrounding the Mercury well-hidden sequel, and other than knowing that Hart is in the writing phase, there is currently no title or book cover tied to the project. Titles and cover art can be a clever way for authors to hint at upcoming plots and storiesand similar to other popular fantasy book series, Hart may be waiting to reveal details about the second book in the series. Fae and Alchemy series until closer to its publication date.
The first book in the series, Mercuryis named after the mysterious alchemical substance that Saeris has the ability to manipulate and, on some occasions, even speak. Given this fact, It is possible that the title of the Fairy & Alchemy the sequel will be significant to the overall plot found in the second book. Additionally, MercuryHart's famous cover was designed by Hart herself, and it's unlikely she will reveal any new cover art until she finishes writing the second novel.
History of Fae & Alchemy Book 2: What Quicksilver Prepares for the Sequel
Book Two is set to bring absolute chaos to the series
Mercury ends on the heels of several discoveries, leaving readers questioning what will happen to the books' main characters after the final series of events. The book ends with Saeris awakening and discovering that she is half Fae and half vampire.and as she tries to adjust to her new identity, it's clear that this new development will greatly affect her character arc in the second book. Not only does Saeris have to come to terms with the fact that she is no longer human, but her defeat of Malcolm and subsequent transition to vampire have made her Queen of Sansaroth.
These elements alone would be enough to create havoc in the Mercury sequel, but they're not the only factor that will come into play.
These elements alone would be enough to create havoc in the Mercury sequel, but they're not the only factor that will come into play. In the end, Saeris is dragged through the mercury portal and comes face to face with Zareth, the god of chaos himself. After a brief discussion about the fate of the world, Zareth explains that his bond with Kingfisher is so strong that his counterbalance in the universe could threaten to destroy them all.. While Hart has barely scratched the surface of this element, it's clear that this narrative will be the focus of his entire fantasy book series.
Furthermore, the Mercury the sequel will likely see Saeris return to Zilvaren. Not only does she want to reunite with her brother, but Carrion's twist at the end of the first novel reveals that he is the lost heir of Daianthus. Carrion spent years hiding on Zilvaren and may be one of the only Fae who truly understands and cares about humans and their oppression on other worlds. Now that Saeris has discovered the secret to manipulating mercury, it is possible that she will use this knowledge to return to Zilvaren to seek out her brother and seek revenge on Madra.
How many more books will there be in Callie Hart's Fae & Alchemy series?
The original series will be a trilogy, with possible spinoffs
On Callie Hart's author website, the FAQ page notes that the Mercury series aims to become a fantasy trilogy. While that remains Hart's goal, there's a possibility the series could go on even longer – and that will just depend on whether Hart feels he can wrap up the narrative in just three books. However, Hart's website also mentions that the author may explore possible spin-off books that will focus on the series' secondary characters.
These additional books to the series would likely be in the same timeline and fantasy universe as the original. Mercury seriesbut it would offer readers a new vision and storyline for a new character. Hart's series is full of beloved characters, and she created several whose arcs would serve well as a standalone addition to the series – one example is Carrion Swift, the lost heir of Daianthus and the series' comic relief.
Netflix adaptation could follow Quicksilver and its sequels
Hart may be able to stay ahead of Netflix adaptations
As the acquisition of Netflix by Mercury was announced a few weeks ago, it's safe to assume the adaptation will be a few years away from hitting the screen. This is a huge relief, as Hart Mercury the series has not yet concluded – with the second book due out in autumn 2025. Hart's publishing schedule creates the need for Netflix to be intentional in its pace of adaptationand ensure they avoid overstepping Hart's source material. Unfortunately, this has become a common trend for several fantasy adaptations in recent years, as studios have begun to outgrow their source material and have been forced to adapt outside of the original plot.
Fortunately, Netflix likely doesn't have this problem with its Mercury adaptation, as Hart's current schedule will see the Mercury the sequel hit stores just over a year after the release of the first book. If Hart's annual publishing trend continues for the third book in Fae and Alchemy series, readers can expect the trilogy to conclude in late fall to early winter 2026. In that case, Netflix should have no hassle keeping up with the series. Mercury novels. And avoiding this unfortunate trend will ultimately help Netflix's fantasy adaptation of Mercury stay true to the books.