Zen Mountain

A tranquil mountain connected by a sturdy bridge to mirage castle. It too has a similar feeling to the testing bridge to enter the castle but nowhere near the same effect. The mountain is mostly silent, almost to an eerie degree. But the ambient sounds of flowing water and a natural hot spring from the mountain being a dormant small volcano.

After the events within RBDD, Azreal / Azhar does end up owning and opening a hot spring similar to zen mountain.