Oerba 200AF

As soon as you gain control of your character turn around and use Moogle Hunt on the sphere behind you. You'll get the Giant's Egg Fragment. With that in hand move forward to the strange rift. Use Moogle Hunt to reveal the Temporal Rift. You'll be taken to a Rift Puzzle. This round of puzzles (known as Crystal Bonds puzzles) require you to connect a series of crystals by matching crystals of the same color. There will be a pattern shown to you before the puzzle starts. You'll need to connect crystals to form these lines but note that the colors are repeatedly shifting unless you have one selected. Complete the puzzle in the alloted time and you'll be allowed to move on.

After solving the puzzle you'll receive the Time's Stardust Fragment. You have now unlocked the second section of Oerba. On the main walkway snag the sphere with 2 Gysahl Greens and head north and west for a sphere containing a Power Wristband. Now jump the broken wall section and head east along the narrow path, then turn north, following the left side, into the open area.

Chocolina is available to shop with here. Make sure to enter the house and pick up the Map and a box containing the 'Visions' Gate Seal. Then approach the next rift. After solving the puzzle you'll receive the Time's Shell Fragment. You can now go around behind Chocolina and pick up a sphere with a Magician's Mark.

Follow the path west. Along the way pick up the sphere with 550 gil. Take the turn north to face your final rift with two puzzles this time. You'll be rewarded with the Time's Coral Fragment and the restoration of the entire map.

If you have Moogle Throw you can pick up a Wild Artefact. It is very sneakily hidden. To get it you'll have to backtrack a bit along the path you came from. In an alcove to the right of the building you will find an overlook featuring what looks like the wing on a plane. Just to the left is an out-of-phase sphere. Toss Mog at it and you'll get a Wild Artefact.

Head back along the path opened up when you solved the rift. Go down and around. Along your way to the beach grab the sphere containing 3 Ce'ith Tears. Before going down to the beach round the corner to the east and follow the tiny side path to find an out-of-phase sphere containing a Hypnocrown. Head down to the beach and pick up the sphere containing a Librascope.

Go up the stairs to the left of the building, grabbing a sphere with 600 gil along the way. If you've got any CP stored up, now is the time to use it. When you're ready go up to the top of the schoolhouse.

Boss: Caius Ballad

This battle can be quick and simple if you've done a large amount of leveling (such as fighting Behemoths). If you're in good shape you can finish this using only Relentless Assault and perhaps some potions. However, if you're struggling you'll need to use Delta Attack, Mystic Tower, and possibly Diversity to heal. Make sure you've got some Phoenix Downs just in case things get really nasty.

After the fight you'll need to get the Artefact of Origins at the end of the roof which opens the gate in the northeast to Yaschas Massif 01XAF. You'll also want to jump down through the break in the roof to grab the sphere with 10 Power Bolts