A review by realbooks4ever
Sign of the Unicorn by Roger Zelazny

4.0

SIGN OF THE UNICORN is the third book in the Amber Chronicles. Corwin has returned to Amber and is trying to find the imprisoned brother Brand, with the help of his brothers and sisters. Two brothers are killed, and an attempt is made on Corwin's life. The origin of the black road is a mystery, as well as the creatures who attacked and killed one of the brothers (and previously attacked Corwin on Earth in NINE PRINCES IN AMBER).
There is a surprising question at the end of this book, which propels me to start the next entry in this series!