The Arabian Nights is a collection of Middle Eastern and South Asian stories and folk tales compiled in Arabic during the Islamic Golden Age. The two crossword solutions for this term are 'Alibaba' (7 letters) and 'IOOI' (4 letters). Alibaba is a character from the story 'Ali Baba and the Forty Thieves' who discovers a hidden cave full of treasure. IOOI is an acronym for 'If On a Winter's Night a Traveler', a novel by Italo Calvino which is heavily influenced by the Arabian Nights.