Bridgerton‘s fourth season is nearing with each passing week as we gear up for the show’s 2026 return, but a recent social media post by author Julia Quinn is stirring up Season 5 speculation.

As fans know by now, Shondaland’s hit Netflix series is based on the books written by Quinn, with An Offer From a Gentleman serving as the primary source material for Season 4’s storyline centered around the second-eldest son, Benedict (Luke Thompson), and Sophie Baek (Yerin Ha). But it appears that Quinn has specifically called out the series’ fifth book, To Sir Phillip, With Love, which revolves around Eloise Bridgerton (Claudia Jessie) and her romance with Sir Phillip Crane (Chris Fulton).