The Robin on the Oak Throne is the second book in the Oak & Holly Cycle, a dark romantasy series by New York Times bestselling author K.A. Linde. It is the sequel to The Wren in the Holly Library and was published on June 17, 2025, by Red Tower Books (US) and Pan Macmillan (UK).

Set in an alternate New York teeming with monsters and magic, the story follows Kierse McKenna after she has shattered the Monster Treaty. What began as a seemingly simple heist—stealing a goblin-made bracelet from the Queen of the Nymphs—quickly spirals when Graves, the warlock who previously betrayed her, reappears to save her life. Once again drawn into his dangerous schemes, Kierse must track down another ancient artifact while confronting the truth about her own past. The novel blends enemies-to-lovers romance with high-stakes fantasy intrigue, drawing on the mythological Oak and Holly King cycle as a framework for its central conflict.