Lost world Arthur Gordon Pym of Nantucket" (1838) has certain lost world elements towards the end of the tale. James Hilton's "Lost Horizon" (1933) enjoyed popular success in using the genre as a takeoff for popular philosophy and social comment. It introduced the name Shangri-La, a meme for the idealization of the lost world as a paradise. Similar books where the inhabitants of the lost world are seen as superior to the outsiders, are Joseph O'Neill's "Land under England" (1935) and Douglas Valder Duff's "Jack Harding’s Quest" (1939). Hergé also explores the theme in his comics "The Seven Crystal Balls" and "Prisoners
The Heart of What Was Lost leader, Duke Isgrimnur, leads his army in pursuit, determined to destroy the Norns and their ancient Queen Utuk'ku once and for all. The book is told from three points of view: Duke Isgrimnur of Rimmersgard; a Norn leader, Viyeki; and Porto, a Perdruinese mercenary. Jason Heller, a book reviewer for NPR, reviewed the book, stating the novel balances "warmth with grimness, and gentle bits of humor with violence and vengeance. Williams has tapped back into the dynamic that made "Memory, Sorrow, and Thorn" so absorbing." Aiden Moher at Barnes & Noble's fantasy blog called "The Heart of What Was Lost"