Poe no Ichizoku: Himitsu no Hanazono

The third installment of the new Poe no Ichizoku series which started in 2016, and a prequel to the chapter "Lambton wa Kataru". Set in 1888 and follows Edgar and Allan. When Allan's health suddenly gets worse during their travels, the pair finds themselves lodging at the manor of Lord Arthur Quenton.

Notes:
- Volume 1 includes the British Museum report manga "Daiei Hakubutsukan Manga-ten Tanbou-ki" (大英博物館 マンガ展 探訪記) and the side story "Poe no Ichizoku: Bangai-hen – Getsuyoubi wa Kirai" (ポーの一族 番外編 月曜日はキライ).
- Volume 2 includes the side story "Poe no Ichizoku: Mangetsu no Yoru" (ポーの一族 満月の夜).