It was published on November 8, 2022, by Simon & Schuster Books for Young Readers and has been called "a worthy successor" to its predecessor, Legendborn.

Selwyn Kane, a Merlin tasked with keeping Bree and the rest of the Order of the Round Table safe, discovers she has left her room.

They are soon attacked by demons, and Bree is removed from the battle by an unknown entity who turns out to be a member of the Mageguard, "the elite military unit of the Order's forces."

Her vision of the Round Table changes into that of her ancestral stream, where she sees Vera, her ancestor, before waking again in the ogof where she began the Rite of Kings.

The first time she is fully aware, she is being treated by her friend William, who tells her the Rite was an ambush and that the Council has been holding the two of them in a facility for three days, controlled by a serum that subdues their powers.

Bree, Alice, William, Sel (rescued from a separate facility), and their three allies board a plane and travel to a safe house.

The group discovers that their host made a deal with the demon, wanting her to kill Bree, which would cut off the bloodlines and effectively end the Order of the Round Table.

Feeling that they are no longer safe at their current base, the group travels to Volition, whose grounds are protected by ancient Rootcraft.

It was an instant New York Times Bestseller, debuting at number one and spending ten weeks on the Young Adults Hardcover Best Seller List.

"[1] Deonn is also lauded for her "commitment to presenting unflinching truths about the cyclical insidiousness of racism," which is an undeniable theme throughout Bloodmarked.