Elizabeth Helen Books

Elizabeth Helen is not one author but two: Canadian sisters Elizabeth and Helen, who grew up on fairy tales and turned that shared obsession into one of self-publishing's biggest romantasy success stories. Their Beasts of the Briar series began with Bonded by Thorns in 2023 and grew by word of mouth into an international bestseller, eventually reaching #4 on the Sunday Times hardback fiction list, rare territory for a self-published fantasy romance. The sisters have kept their personal lives private, letting the books and the fandom speak. Print deals and hardback editions followed the online success, and the series now sits in bookstores next to the traditionally published giants it outsold, a trajectory almost no self-published fantasy romance managed before the BookTok era.

Their writing is pure fairy-tale maximalism. Enchanted roses, cursed princes, autumn courts, and a heroine who gets not one love interest but four. What makes it work is sincerity: the books commit completely to the emotional lives of each prince, giving every romance its own arc, tension, and payoff instead of treating the harem as set dressing. The tone balances whimsy and heat, with real darkness at the edges as the series' curse deepens.

Bonded by Thorns introduces Rosalina O'Connell, a bookish romantic who stumbles into the fae world of Castletree and its four cursed princes, each tied to a season and each slowly succumbing to a briar curse. The Beauty and the Beast bones are visible and lovingly used. The series continues through multiple installments as the princes' curses, the queens behind them, and Rosalina's own heritage unravel, and the fandom tracks every special edition drop like a sporting event. The princes, Keldarion, Ezryn, Farron, and Dayton, are each bound to a season of Castletree, and the sisters give every one of them a distinct wound, voice, and arc rather than blurring them into an interchangeable pack. Rosalina stays an active protagonist too, a rarity in why-choose stories where the heroine can become a prize to be orbited.

Heat-wise, this is a 4 on our spice guide. The series is why choose, so Rosalina does not pick between the princes, and the explicit content scales up as each romance develops, including group scenes deeper into the series. The spice is frequent but anchored in feelings, which is exactly what the subgenre's readers want. Newcomers should know the romance develops one prince at a time, which keeps the emotional throughlines clean even as the relationships overlap, and the found-family feeling extends to the whole court by midseries.

Elizabeth Helen matters to romantasy because they proved the fae fairy-tale retelling still had room to grow, and that why-choose could anchor a mainstream bestseller rather than living only in Kindle Unlimited's back catalog. Their success, alongside a handful of other indie breakouts, pushed traditional publishers to chase reverse-harem romantasy seriously. For readers, they offer something rarer: a dark fairytale that stays warm at its core, where the found family includes everyone you are rooting for. The sister collaboration itself is part of the appeal, since the books have the polished, argued-over quality of stories workshopped between two people who cannot let a weak scene slide.

Start with Bonded by Thorns and read the series strictly in order, since the overarching curse plot builds continuously. Expect cliffhangers, expect to get attached to a different prince than you predicted, and expect the seasons of Castletree to occupy more of your imagination than you planned. The series rewards patience and rereads, with early throwaway details blooming into plot points several books later, exactly the way a briar grows: slowly, then all at once, with thorns.