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Cornerstone Literary Agency, Inc.·US

Agent profile summary

Represents
debut fictionhorrormysterynew adultparanormal fictionscience fiction
+10 morefantasythrillerromancegeneral fictionliterary fictionmemoirnarrative nonfictiongraphic novelsmiddle gradeyoung adult
Looking for
Query Letter
How to submit
Recently verified·Last verified: 20 May 2026

Helen Breitwieser is a literary agent at Cornerstone Literary Agency, Inc. based in US. Their list focuses on genres including debut fiction, horror, and mystery. Currently open to submissions. For current guidelines, check the agent's own submission page linked below.

Age Categories

Adult, Young Adult, Middle Grade

Agents with overlapping taste

Harvey Klinger Literary Agency

Open
RepresentsLiterary fiction, commercial fiction, upmarket women's fiction, romance, thriller, mystery, fantasy, science fiction, historical fiction, young adult fiction, middle grade fiction, memoir, narrative non-fiction, popular science, parenting, pop culture, humor, how-to, self-help, lifestyle, travel, interior design, crafts, business
Looking forAndrea represents a wide range of fiction and nonfiction, including projects for adult, young adult and middle grade audiences. She actively seeks literary and commercial fiction, upmarket women's fiction, romance, thrillers, mystery, fantasy, science fiction, and historical fiction. In nonfiction, she seeks memoir, narrative nonfiction, popular science, parenting, pop culture, humor, how-to, self-help, lifestyle, travel, interior design, crafts, and business.
How to submitSubmit via email with a short synopsis of your work, author bio, and the first five pages of your manuscript pasted into the body of the email. No attachments.
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Prentis Literary

Closed
RepresentsFiction, speculative fiction, fantasy, science fiction, poc fiction, intersectional fiction, young adult, middle grade, women's fiction, suspense, thriller, romance, LGBTQ+ fiction, children's fiction, mystery, horror, literary fiction, memoir
Looking forAutumn Frisse is listed by Prentis Literary under Acquisition and is described as the agency gatekeeper who gives submissions a thorough look-through and can pass suitable work on for consideration. The agency focuses on high-quality fiction, speculative and other, with rare memoir, and centers traditionally marginalized groups. The official genres page lists fantasy/science fiction, POC and intersectional fiction, young adult and middle reader, women's fiction, suspense/thriller, romance, LGBTQ+ fiction, children's fiction, mystery, horror, literary fiction, and limited memoir.
How to submitPrentis Literary's official submissions page says submissions are closed and that submissions will be discarded. Do not submit unsolicited material while closed.
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Prentis Literary

Closed
RepresentsFiction, speculative fiction, fantasy, science fiction, poc fiction, intersectional fiction, young adult, middle grade, women's fiction, suspense, thriller, romance, LGBTQ+ fiction, children's fiction, mystery, horror, literary fiction, memoir
Looking forTrodayne Northern is Co-President and Lead Agent at Prentis Literary. The official about page says his passion is good storytelling, that science fiction and fantasy are his first love, and that his genre interests are wide-ranging. The agency focuses on high-quality fiction, speculative and other, with rare memoir, and centers representation of traditionally marginalized groups. The official genres page lists agency interest areas including fantasy/science fiction, POC and intersectional fiction, young adult and middle reader, women's fiction, suspense/thriller, romance, LGBTQ+ fiction, children's fiction, mystery, horror, literary fiction, and limited memoir.
How to submitPrentis Literary's official submissions page says submissions are closed and that submissions will be discarded. Do not submit unsolicited material while closed.
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Donald Maass Literary Agency

Open
RepresentsDebut fiction, horror, mystery, new adult, paranormal fiction, science fiction, fantasy, thriller, romance, general fiction, literary fiction, middle grade, young adult, children's fantasy
Looking forKesia represents debut fiction, horror, mystery, new adult, paranormal, science fiction/fantasy, thriller, romance, general and literary fiction, middle grade, young adult, and children's fantasy.
How to submitQueries are considered only via QueryTracker.
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Dystel, Goderich & Bourret LLC

Open
RepresentsCommercial fiction, literary fiction, upmarket fiction, mystery, suspense, thriller, romance, fantasy, science fiction, horror, young adult, middle grade, narrative nonfiction, pop culture, food, travel, lifestyle, LGBTQ+, latinx
Looking forLauren is interested in commercial, literary, and upmarket fiction; mystery, suspense, thriller, romance, fantasy, science fiction, horror, young adult, and middle grade; and nonfiction with a strong platform in narrative nonfiction, pop culture, food, travel, lifestyle, LGBTQ+, and Latinx topics.
How to submitSubmit via Lauren Abramo's QueryManager form following Dystel, Goderich and Bourret submission guidelines. Include the query materials requested by QueryManager, do not email queries outside the stated process.
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Triada US Literary Agency

Open
RepresentsChick lit, commercial, contemporary, cozy fantasy, cozy romantasy, crime, detective, police, family saga, fantasy, fantasy: magical realism, fantasy: urban, graphic novel, historical, horror, LGBTQ+, literary, middle grade, military, espionage, multicultural, mystery, new adult, offbeat, quirky, romance, romantasy, suspense, thriller, upmarket, women's fiction, young adult
Looking forQuery Letter, Synopsis, One Paragraph Pitch, Comparable Books, First 10 Pages
How to submitSubmit through Query Manager. Unsolicited queries sent to his email address will be deleted unread.
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This profile was last verified on 20 May 2026. PairPi tracks UK literary agents' submission guidelines against their own websites. If you spot something wrong, please email hello@pairpi.com.