The book is a modern translation of a 14th century alliterative poem, which tells the story of Sir Gawain, a knight of King Arthur's Round Table. The story begins when a mysterious Green Knight arrives at Arthur's court, challenging the knights to a beheading game. Gawain accepts the challenge and beheads the Green Knight, who surprisingly survives and tells Gawain to seek him out a year later to return the blow. The book follows Gawain's journey, filled with trials and temptations, as he tries to fulfill his promise to the Green Knight, maintaining his honor and chivalry.

"Goblin Market" is a narrative poem that explores themes of temptation, sacrifice, and salvation through the story of two sisters, Laura and Lizzie, who encounter goblin merchants selling a variety of luscious, enchanted fruits. Despite warnings, Laura succumbs to the temptation and indulges in the fruit, leading to a decline in her health and spirit. Lizzie, determined to save her sister, bravely confronts the goblins and resists their temptations, ultimately purchasing the antidote with her courage and purity. The poem culminates in a powerful act of sisterly love and redemption, as the bond between the siblings triumphs over the malevolent forces.

"Ballads and Songs" is a collection of lyrical poetry that delves into themes of love, mortality, and the human condition, reflecting the author's fascination with both the romantic and the macabre. The poems often employ vivid imagery and rhythmic verse to explore the complexities of life and the nature of reality, drawing on both traditional ballad forms and the author's unique, modern sensibility. The work is known for its emotional depth, intellectual rigor, and the ability to capture the spirit of its time through a blend of classical and contemporary influences.

"The Earthly Paradise" is a collection of narrative poems that weave together classical and medieval stories of love, adventure, and mythology. Set within a frame narrative of seafarers who have escaped the Black Death in search of an earthly paradise, the work explores themes of longing, the passage of time, and the pursuit of beauty. Each month, a tale is told by one of the wanderers or by a resident of the idyllic land they discover, creating a rich tapestry of storytelling that reflects on human desires and the transient nature of life and happiness. The poems are known for their lush language and the romantic escapism they offer, characteristic of the 19th-century's fascination with pre-industrial and fantastical themes.