Secret of Cerulean Sand (パタパタ飛行船の冒険, Patapata Hikōsen no Bōken) is a 26-episode anime television series. The main character is a 15-year-old English girl named Jane Buxton, who dreams of building a flying machine due to the influence of her brother. The series documents her journey through the Near East to find her brother, who went missing after headed to the Near East to look for a floating liquid in an expedition. It is set in the late 19th century where impossible technologies such as landships and "floating liquid" exist side by side in a steampunk world.