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Nina Leon

Closed
Associate Agent·UK

Agent profile summary

Represents
fiction
Looking for
Represents all genres in fiction; especially romance-forward projects. Adult/New Adult focus: fantasy romance and dark fantasy romance (medium-high spice), portal fantasies, fae/witches, gothic romance, dark fairytale retellings, court intrigue; also romcom and dark/magical academia. YA: first love stories, spooky/macabre (Tim Burton aesthetic), epic love stories, modern retellings; mystery in unusual setting. MG: darker/whimsical adventures (e.g., Coraline vibes) plus humour and quirky characters; seeks LGBTQ and, disabled and minority representation. Suggests checking X (Twitter) account for status change.
How to submit
QueryManager
Needs verification·Last verified: 7 Apr 2026

Nina Leon is a literary agent at Associate Agent based in UK. Their list focuses on fiction. Currently closed to submissions. Submissions via QueryManager. For current guidelines, check the agent's own submission page linked below.

Age Categories

Adult, YA, Middle Grade

Agents with overlapping taste

RepresentsChildren's authors and illustrators
Looking forChildren's authors/illustrators across ages/genres, currently especially: witches, teen romance/romcom series, MG/YA sci-fi/fantasy, MG/YA horror/supernatural, YA romantasy, books for boys, compelling contemporary. For picture books/graphic novels currently only author-illustrators
How to submitEmail childrensbooksubmissions@theagency.co.uk with submissions as attachments, not download links. Do not email the agent directly. No postal submissions.
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Bell Lomax Moreton

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RepresentsChildren's and YA fiction, na/crossover, commercial women's fiction, narrative non-fiction
Looking forMG: voice-driven with heart/humour, contemporary or MG fantasy series. YA: friendships/firsts/feels, high-concept/speculative romance or thriller. NA and commercial women's: romance-forward with unusual circumstances, romcom (college/university), darkly comic new-parenthood, also speculative/historical romance. Romantasy: romance-forward, grounded magic, morally grey. Non-fiction: extraordinary challenges/adventures, experts in STEM/history/pop culture/mental health. Not sci-fi, crime fiction, picture books
How to submitEmail submission@bell-lomax.co.uk with a covering letter in the email body, a short synopsis (including full plot details), and the first three chapters (no more than 50 pages, double spaced) as a Word document or PDF. Do not address the submission to more than one agent.
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The Blair Partnership

Open
RepresentsChildren's fiction and non-fiction (to YA/crossover)
Looking forAmbitious storytelling, bold structure/voice, fresh takes on genre, author/illustrators, underrepresented/marginalised voices, high-concept contemporary YA romance, horror/thrillers, hooky YA fantasy/speculative, hilarious MG, screen potential
How to submitEmail - rachelsubmissions@theblairpartnership.com
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Shesto Literary

Open
RepresentsCrime fiction, thriller, mystery, psychological thriller, supernatural suspense, ghost stories, romantic suspense, historical fiction, women's fiction, middle grade, YA, horror, non-fiction, self-help, narrative non-fiction, memoir
Looking forCrime fiction encompassing thriller, mystery, and psychological thriller; supernatural suspense; ghost stories; romantic suspense; historical fiction; women's fiction; children's fiction at middle grade and YA level; horror; and non-fiction including topical, accessible works such as self-help, narrative non-fiction, and memoir. Does not represent science fiction, fantasy, short stories, poetry collections, erotica, or picture books.
How to submitSubmit by email only. Fiction submissions should include a cover letter in the body of the email, a short bio, a synopsis, and three sample chapters as separate attachments. Non-fiction submissions should include a cover letter in the body of the email, a short bio, a proposal with chapter breakdown, and three sample chapters as separate attachments. Use the submissions page at https://shesto-literary.com or submissions or to send your materials.
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Greene & Heaton

Open
RepresentsLiterary fiction, upmarket commercial fiction, historical fiction, romantic comedy, gothic, horror, crime, psychological thriller, speculative fiction, YA, middle grade, memoir, narrative non-fiction, true crime
Looking forLiterary and upmarket commercial fiction of all kinds, especially meditative or moving novels about modern life with warmth and heart alongside sharpness. Historical and period fiction that sheds light on untold stories, ambitious cross-centuries narratives, and historical mysteries. High-concept love stories and romantic comedies with depth. Gothic, horror, murder mysteries, ghost stories, psychological thrillers, speculative and magical realist fiction, and novels with a true-crime feel. A small list of YA and middle grade that feels current and contemporary with a real conversation at its core — not currently seeking fantasy or anything younger than middle grade. On the non-fiction side: memoirs of extraordinary people, narrative non-fiction on subjects the author is passionate about, books on mental health, untold stories across popular science, history and popular culture, and a brilliant true crime book. Particularly keen on LGBTQI+ stories and diverse voices from across the globe. Not currently looking for cookery, wellness, or lifestyle.
How to submitEmail submissions@greeneheaton.co.uk with your covering letter in the body of the email. Include the agent's name in the subject line. Fiction: attach the first three chapters or around fifty pages plus a one-to-two page synopsis that reveals the ending, as Word documents. Non-fiction: attach three sample chapters or around fifty pages plus a chapter summary or synopsis, and explain why you are best placed to write the book and who the intended readership is. AI-generated or AI-edited content is not accepted. No postal submissions.
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Darley Anderson Children's Book Agency

Open
RepresentsChildren's books
Looking forActively seeking new clients, MG adventure/series potential, YA romance and fantasy, horror/monster stories, contemporary teen, queer/found-family, SFF across YA/new adult (not grimdark)
How to submitEmail - childrens@darleyanderson.com
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This profile was last verified on 7 Apr 2026. PairPi tracks UK literary agents' submission guidelines against their own websites. If you spot something wrong, please email hello@pairpi.com.