The River Xangu has three main tributaries.
The River Antzu is a main tributary of the River Xangu
. The Antzu merges with the River Xangu
close to its estuary, increasing its breadth considerably. This waterway runs parallel to the River Xangu
along the floor of the same valley. Due to its mostly flat course, the Antzu is a slow moving river making it home to a broad range of flora and fauna. The River Antzu's banks are home to a number of Bestu
settlements, the largest of which is Tszu-Tszo Town. In addition to the various Bestu
settlements, there is also a Bestu
religious centre called Tantu-Wantu.
Known as the Pantu-Punto to the local Bestu
people, the gravity falls are a point in the river's course where the water travels upwards over a small incline. The cause of this is currently unknown. Dr. June Mixelrut wrote about the upward falls during her expedition to the area. When her report was published in Radasanth
it was widely believed to be an attempt at garnering financial support for a second expedition. Her entire team corroborate her account. Radasanth's
prominent scholars believe that a form of magic must be involved, rather than a natural process.
Tszu-Tszo is the largest of the Bestu
settlements. Central to its layout is the council roundhouse, this is where their elected officials gather to govern. More prominent than the roundhouse is the Tszo Cathedral, the pinnacle of Bestu
architecture. The cathedral is made of carved boopadoon
ivory. Tszu-Tszo is surrounded by walls made from hard wood frames, filled with earth and stone. At its highest point the wall is 25 feet high, but is at least 15 feet all the way around. Guard towers have been erected at regular intervals. Rooftop gardens are very common in Tszu-Tszo, most residents grow their own vegetables on top of their homes. A half mile into the forest from Tszu-Tszo a large pit can be found, this pit was dug to accommodate the deaths incurred as a result of the red plague that affected the area 13 years ago.
Tantu-Wantu is a sacred spot on the river's bank, the Bestu
people have used this site as a location for the ritual sacrifice of their enemies for hundreds of years. A stone alter, claimed to be carved from moon rock, is used by the reigning high shaman to dismember living victims. Once various body parts have been removed, they are fed to the gathered boopadoons
The River Calbu is a main tributary of the River Xangu
, it is another slow moving river covering the narrow valley floor. Thus far, little is known about the Calbu. Dr. June Mixelrut decided not to venture upstream as she deemed it too similar to the Xangu
to be of interest. Having questioned the locals, Mixelrut's suspicions were confirmed. Bestu
naturalists confirmed that the Calbu mostly contained the same species as the Xangu
While not known for its biological diversity, the River Calbu is, however, an important body of water for Bestu
shaman. The god Fase
is believed by the Xangu
peoples to have created all the rivers. However, the Calbu is his favourite. Drinking from the Calbu is believed to improve a shaman's ability to communicate with the dead, transform into animals and visit other worlds. The region's most famous shaman, Do U, is thought to have drank from the River Calbu prior to opening portals to other dimensions.
The River Noku is a main tributary of the River Xangu
. It is the only major tributary of the river that is fast flowing. It is located on the incline of the Xangu valley's western side. This river meets the River Xangu
near its estuary. The fast flowing waters of the Noku meeting the Xangu's
slow moving water create a whirlpool. Around the whirlpool is known as a good fishing spot by the Bestu
people, it is believed the churning waters stir up the river's sediment creating an abundance of food for fish. Many wiki=Bestu]Bestu[/wiki] fishers drown while attempting to fish in the area. The most notable species living in the River Noku is the Kissing Carp