Khaled, a Tale of Arabia (Unabridged‪)‬

Khaled is a genie who has fallen in love with the beautiful Zehowah, the only child of the powerful Sultan of Nejed. Zehowah is courted by suitors from far and wide. When she seems inclined to accept the proposal of a handsome Indian prince, Khaled, with his special powers, recognizes the prince's deceitful nature and whisks him into the desert to kill and bury him. In consequence, Khaled is punished by losing his rank as a genie and is given the body of a human, though without a soul, which he can obtain only if he wins the love of the proud and headstrong princess Zehowah. 

All that is only the first half of the first chapter of a 12-chapter fantasy expertly written in the style of the Arabian Nights! 

F. Marion Crawford's magnificent tale has long been recognized as a classic in the field of adult fantasy. It was reprinted in the Ballantine Adult Fantasy series, which is widely considered a high-water mark in fantasy publishing.