Diana Urban Books

Diana Urban came up through digital marketing for startups and still works in it, writing thrillers on the side with a discipline that shows in the plotting. Her debut, All Your Twisted Secrets (2020), locked six students in a room with a bomb, a syringe, and one hour to decide who dies. These Deadly Games followed on 1 February 2022, and Lying in the Deep arrived in 2023. Three books, three variations on the same instinct: put ordinary teenagers inside a scenario with rules, then make the rules cruel and watch who bends.

Structure is what defines her. Urban builds thrillers like puzzle boxes and she plays fair with the reader, which is rarer than it sounds. These Deadly Games opens with Crystal Donavan receiving a photograph of her kidnapped younger sister along with a list of tasks from an anonymous player: steal a test, bake brownies, make a prank call. The tasks escalate. The pleasure is watching a competent, unremarkable girl reason her way through a game designed by somebody who knows exactly how she thinks. The comparisons publishers reach for, One of Us Is Lying and I Know What You Did Last Summer, are fair rather than aspirational.

Being candid about genre: there is no fantasy here, no fated anything, and the romance is motive rather than plot. Urban is in this database because the catalogue tracks what romantasy readers actually pick up between books, and thrillers are the most common answer by a wide margin. If you want the closest overlap with your usual shelf, Lying in the Deep is the one to try; it is set aboard a semester-at-sea ship with a college-aged cast and carries considerably more romantic entanglement than the other two.

Heat sits at zero to one on the spice scale, with These Deadly Games rated a 1. Nothing explicit appears in any of the three books. The content warnings run in a different direction entirely: sustained psychological pressure on minors, gaslighting, blackmail, violence, and in the debut a genuinely bleak premise about complicity. Readers sensitive to coercion plots should know that the coercion here is the whole architecture, not a subplot.

She earns a place on a romantasy site for two reasons. The first is pacing recalibration. A three-hundred-page thriller resolving across three days of story time is an effective corrective after a six-hundred-page fantasy with four points of view and a map. The second is mechanical: the mystery machinery Urban uses is the same machinery that makes the better dark academia titles work. If you liked the puzzle half of Ninth House more than the occult half, she is a direct fit, and she does it in a third of the page count.

A note on where she fits in a reading year. Urban is best used deliberately rather than picked up at random. Read her after finishing a long fantasy series when nothing else holds your attention, or between instalments when the wait is doing damage to your reading habit. Her books are engineered to be finished, which is the specific quality a slump needs. They also travel well, since none of them require you to hold a map, a pronunciation guide, or a family tree in your head. Come back to the fantasy shelf afterwards and the six-hundred-page commitment will feel manageable again.

Begin with These Deadly Games. It is her most propulsive book, the twists land, and it will tell you quickly whether her voice works for you. All Your Twisted Secrets comes next if you want the bleakest of the three and can handle the premise. Lying in the Deep is last on the list for thriller purists and first for anyone who wants romance in the mix. None of the three connect, so read them in whatever order your mood dictates and skip any that does not appeal.