The Devourer Cave is a large cave south of Ascalon City. As the name implies, the cave is inhabited by devourers in large numbers. In Pre-Searing you will also find some Devourer nests here. You lack the necessary knowledge to extract the Eggs from the clutch though. You need the help of an Egg Hunter to get your hands on an egg. In Post-Searing the cave and the Devourers are still there, but no nests. You will find some Charr prison cells in the cave now.