The Surdu are a band of tribesmen native to Enathpaneah. The Surdu preserved their Inrithi traditions for centuries after Enathpaneah fell to the Fanim. When the Holy War marches on Shimeh, a number of Surdu offer to join the Holy War and guide them through the Betmulla Mountains. However, Anasûrimbor Kellhus senses deception, and it is subsequently revealed that Padirajah Fanayal ab Kascamandri abducted their wives and children to compel them to join and then betray the Holy War. Kellhus has the Surdu men publically flayed.