The Temple of the Heavens
The temple is a smallish step pyramid, one similar to those occupied by the Rebel Alliance more than thirty years prior. It sits on a small island in the middle of a river. The grey stone is covered with moss and vines, making it blend in with the surrounding terrain. Failing that, they might need to resort to more drastic (and perhaps destructive) measures.
0. Entry (Not Pictured)
Given the quality of this pyramid's construction, along with the vegetation growing on it, interested parties must make a hard Perception check to find the removable slab at the top of this pyramid. From there, it's a ten-meter drop to the floor of the main chamber (see below for details). The entrance is represented by the six-meter-wide circle depicted on the map.
1. Orrery Chamber
The center of this temple is filled by a single chamber, one that itself is dominated by a broad ring cut from the stone, along with a structure in the middle that resembles an altar. It is two meters in diameter, with a small hole in the center and a series of twenty-four holes in the surrounding edge. What is more, around the outside of the room there is another circular structure, this one perforated by 201 holes. Their purpose may only become apparent once the PCs possess the keys that should be used with them (see below for details).
Surrounding the orrery chamber there are twenty-four smaller rooms, each six meters square. They provided space for meditation when the Massassi still lived and worshiped here. Now they sit empty, with two exceptions that are detailed below.
3. Gundark Nest
In one corner of the structure the aquatic gundarks have built their nest. They have laid eggs within it, and thus are very protective of the area.
4. Tomb Raider
Characters who explore the cells and make a hard Perception check notice the corpse of a Human wearing a tattered and rotting jumpsuit, with a water-clogged blaster pistol on his or her hip. What is more, in a satchel this ill-fated treasure hunter has three items. Each is a gemstone fitted atop a thin metal spike; one is green, the second is mottled red and cream, and the third is orange. Although the PCs might not recognize the fact right away, they are the key to accessing the temple's hidden chamber (see below for details).
5. Hidden Chamber
The PCs can gain access to this room as long as they manage to solve the aforementioned puzzle. If an when that happens, a circular staircase opens around the base of the central altar, descending into the darkness below. At the bottom is a round chamber twenty meters in diameter, one that has stone sarcophagi lining the walls. While the remains in this tomb have long since broken down into dust, there are still a few physical artifacts remaining. These include a massassi lanvarok and a handful of ammunition disks for it. At the GM's discretion, there could be more items as well.
Solving the Puzzle
The altar in the middle of the temple, along with the ring around it, represent the relative positions of the system's primary star, the planet Yavin and its fourth moon. In order to access the secret chamber, one must place the green gem spike into the center hole, and then the red and cream one on the outside ring of the altar and the orange one in its proper place, representing the positions of those bodies in the night sky. PCs who don't recognize this connection might make hard Education checks to realize that the device is a primitive type of orrery.