
Haven is a quite lush and jungle-like Age. It is the prison age for Achenar. What appear to be dinosaur-like creatures also inhabit this jungle world. An unbreakable Nara booth was added at the entrance of the age so Atrus and his family could visit the age, but Achenar could not exit.
In Achenar's stay, he was confronted with surviving along side of the notorious wildlife, who often stole his food and attacked him. He constructed a large house in the center of the lagoon in the jungle as well as several observation posts.
This was the age originally viewable through the Blue Book in the library of Myst.