Twins in Science Fiction/Fantasy
Explore the best science fiction and fantasy books featuring twins! Dive into thrilling tales of twin protagonists, magical bonds, and cosmic destinies in this curated list of must-read novels.


Book
Singularity
by William Sleator
Identical twins Barry and Harry Krasner are house-sitting at their great-uncle's Midwest farm. It's peaceful at first, but soon they realize there's something about the farmhouse that makes locals stay far away. The twins are sure that the locked shed out back is their reason why – but what they find there is more shocking than anything they could have imagined.

Book
The Bone Doll's Twin
by Lynn Flewelling
Sometimes the price of destiny is higher than anyone imagined.... Dark Magic, Hidden Destiny For three centuries a divine prophecy and a line of warrior queens protected Skala. But the people grew complacent and Erius, a usurper king, claimed his young half sister’s throne. Now plague and drought stalk the land, war with Skala’s ancient rival Plenimar drains the country’s lifeblood, and to be born female into the royal line has become a death sentence as the king fights to ensure the succession of his only heir, a son. For King Erius the greatest threat comes from his own line — and from Illior’s faithful, who spread the Oracle’s words to a doubting populace. As noblewomen young and old perish mysteriously, the king’s nephew — his sister’s only child — grows toward manhood. But unbeknownst to the king or the boy, strange, haunted Tobin is the princess’s daughter, given male form by a dark magic to protect her until she can claim her rightful destiny. Only Tobin’s noble father, two wizards of Illior, and an outlawed forest witch know the truth. Only they can protect young Tobin from a king’s wrath, a mother’s madness, and the terrifying rage of her brother’s demon spirit, determined to avenge his brutal murder....

