The fourth moon of the planet Yavin houses the temples and ruined buildings of the now-vanished Massassi race, and once served as the primary base for the Rebel Alliance. A hot jungle world, Yavin 4 has four main continents separated by six oceans, and contains one landlocked sea. (A scouting report for Wetyin's Colony tentatively named the four continents Koos, Starloft, Swivven, and Wetyin.) Volcanic mountain ranges and wide rivers can be found amid the thick jungles and towering, purple-barked Massassi trees. The moon has both a wet and dry season, and violent, unpredictable storms whip across its surface every few months. Beautiful rainbow storms sometimes occur when the sun rises past the limb of the gas giant Yavin and its light refracts against prismatic ice crystals high in the atmosphere. Yavin 4's flora includes sense-enhancing blueleaf shrub, climbing fern, feather fern, colorful nebula orchids, blistering touch-not shrub, and explosive grenade fungi. Indigenous life in Yavin 4's jungles includes semi-intelligent simians called woolamanders, stubborn Yavinian runyips, mucous salamanders, purple jumping spiders, lizard crabs, swimming crabs, whisper birds, reptile birds, stinger lizards, crystal snakes, armored eels, stump lizards, crawlfish, ravenous stintaril rodents, a six-legged, tusked beast with tentacled eyes, tree ticks, spiderlike anglers, piranha beetles, and flying, two-headed reptiles created during the time of the Sith Lord Exar Kun. Several of the ancient Massassi ruins have been given names, including the Great Temple, the Palace of the Woolamander, and the Temple of the Blueleaf Cluster, and almost all of the ruins are connected via an extensive network of underground tunnels. The pyramidal Great Temple lies next to a broad, branching river. The top of the Temple houses an observation deck, and below that is the vast grand audience chamber. Below the chamber are housing levels, and the ground level contains the Communications Center, common rooms, and the Alliance's former War Room. The Temple's hangars are located underground. Over four thousand years ago the Sith magician Naga Sadow, under a death sentence from the current Sith Lord, fled to Yavin 4 with his followers where he could practice his Dark Side alchemy in peace. Sadow hid his starship and his alchemic equipment beneath the Sith Temple of Fire. Sadow's alchemy helped create many monsters, including a warrior species called the Massassi designed to guard Sadow's Yavin 4 legacy. The Massassi, the mutated descendants of the ancient Sith, gradually devolved into a primitive but dangerous people, using the Dark Side to augment their archaic weapons. When the Dark Jedi Exar Kun arrived on Yavin 4, he enslaved the Massassi and forced them to construct new temples as focal points for Sith power. One temple dedicated to Kun s greatness was built deep in the jungle in the center of a still lake, and featured glittering Corusca gems and a towering obsidian statue of the dark lord. During the Sith War, Kun brought twenty Jedi knights to Yavin 4, where he infected them with the evil spirits of the ancient Sith. Ordering them to go out and slay their Jedi masters, a terrible Jedi holocaust descended on the galaxy. Soon, however, a united group of thousands of Jedi, led to the jungle moon by the repentant Ulic Qel- Droma, arrived to stop Kun. The Dark Lord ordered the Massassi Night Beast into an isolation chamber as a surprise for his enemies, and began putting his final plans into effect. Knowing he could not defeat the Jedi fleet, Kun sacrificed thousands of Massassi lives to trap his own spirit within the walls of the temples. The Jedi attackers mistakenly ignited the moon's jungles, devastating its surface and causing the deaths of the remaining Massassi, but the Great Sith War had finally ended.