When a young gardener is called to cultivate the Outer Gods' garden, she discovers that the land is steeped in ancient, forbidden knowledge, and her life becomes intertwined with cosmic horror and the rise of an ancient force....

When a horticulturist discovers a rare black lily in her Arkham garden, she is drawn into a web of forbidden rituals and ancient secrets that threaten to unravel her sanity and the fabric of reality itself....