Legendary acquires film rights to Alchemised for over $3 million

Legendary Pictures has bought the film rights to Alchemised, the forthcoming dark fantasy debut by fan fiction author SenLinYu, in a deal reported to exceed $3 million, according to industry reports. The acquisition, made months before the book reaches shelves, was described by sources as an effort to preempt a bidding war and may rank among the largest sums ever paid for a novel’s movie rights, although accounts vary on the exact figure and whether it constitutes a record.

Alchemised, due from Del Rey on September 23, 2025, grew out of SenLinYu’s widely read 2023 fan fiction Manacled, a Dramione story that reimagined the Harry Potter universe in a darker, more dystopian register. The new book relocates those themes to an original setting called Paladia and centers on Helena Marino, an alchemist and healer with suppressed memories whose captivity on the estate of a powerful necromancer forces her to confront a stolen past. The author, who identifies as nonbinary and is also known simply as Sen, said in a statement that they are “honored by Legendary’s incredible enthusiasm for the project” and look forward to seeing Paladia realized on screen.