The Hollows of Akeroe is an ancient hidden passage which leads to the mountain city of Akeroe. It is believed the passageway is an ancient escape route that may have been used when the city was abandoned. Aside from Akeroe's front gate, the Hollows are the only other known method to access the mountain city, the entrance of which is widely regarded to be impossible to find from the outside.
Only two people have ever found the outside door to the Hollows. The first was Viressa Ka, who found the passage when looking for refuge. The second is Arthur, a non-Ru'nian human whom followed the passage into the city not knowing where it would lead.
See also: Hollows (song)