Appears in: Myst (as The Blue Book), M4R
Written By: Atrus
Haven was one of two Prison Ages Written by Atrus to protect his library of Books from over-greedy explorers. Whereas Spire appealed to a person's dominating nature, Haven appealed to one's sense of adventure and excitement with its up-ended boat resting in a natural cove. The interior of the Age is a dense tropical jungle, a bit of a departure from Atrus's traditionally small islands in a vast and endless sea. Many creatures dwell within this jungle, including Camodiles, Zeftyrs, Karnaks, Cerpatees, and Mangrees.
Enticed by the promise of buried treasure, Achenar ignored the warnings of his father never to venture to the Age and became trapped there. Left alone on the Age, Achenar hunted anything and everything he could, to the point that he may have driven some species close to extinction. Originally, Achenar took up residence in the decrepit ship, but later, he moved to a house he had constructed on a lake farther inland. His stay at the lake house brought about a change of heart, and he spent the rest of his time on Haven trying to ensure that he hadn't unbalanced the ecology of the Age.
During his efforts to exact revenge on his family, Sirrus followed Yeesha to Haven, breaking open the Linking Chamber that had recently been Written into the Age by Atrus. After capturing Yeesha, Sirrus left, leaving his brother to follow.