"The Two Towers" is the second book in J.R.R. Tolkien's epic fantasy series, "The Lord of the Rings". Published in 1954, the book continues the story of hobbit Frodo Baggins and his companions as they journey across Middle-earth to destroy the One Ring, which was forged by the Dark Lord Sauron.

The book is divided into two parts, with the first part focusing on Frodo and his loyal companion Samwise Gamgee as they continue their journey towards the land of Mordor. Along the way, they encounter Gollum, the former owner of the Ring, who becomes fixated on taking it back from Frodo. Meanwhile, the other members of the Fellowship - Aragorn, Legolas, and Gimli - continue their search for the captured hobbits Merry and Pippin, who have been taken by the Uruk-hai, a group of fierce warriors serving the dark lord Saruman.

In the second part of the book, the story follows the adventures of Merry and Pippin as they escape from their captors and are aided by the tree-like Ents in their quest to defeat Saruman. Meanwhile, Aragorn, Legolas, and Gimli encounter the Rohirrim, a tribe of horsemen, and together they launch an attack on Saruman's stronghold at Isengard.

"The Two Towers" is a gripping tale of adventure, friendship, and courage in the face of great evil. It is notable for its vivid descriptions of the landscapes and creatures of Middle-earth, as well as its complex characters and themes of power, temptation, and redemption.

Tolkien's writing style is rich and poetic, immersing readers in the fantastical world he created. The book's themes of heroism, sacrifice, and the struggle against darkness have made it a beloved classic of fantasy literature and have influenced countless works in the genre.

Overall, "The Two Towers" is a thrilling continuation of the story begun in "The Fellowship of the Ring", and sets the stage for the epic conclusion in "The Return of the King".