Pessimism for Granada 's future existed Presence before its ultimate fall Motion_directional ; in 1400 , Ibn Hudayl wrote Writing `` Is Granada not enclosed Placing between a violent sea and an enemy terrible in arms , both of which press on its people day and night ? ''

Many ladders were knocked down and the siege tower got stuck in mud on the banks of the River Eden which surrounded Surrounding all of the castle that was not enclosed Placing within the city walls ( the course of the river was changed Change at some point in the 19th century ) .