Mission 23: Search for Xion
Xion has gone missing in Twilight Town. Team up with Axel and search for her.
Roxas and Axel begin to search for Xion. As they look, they meet with Pence, one of Twilight Town's local kids, who is investigating mysteries of his own. This leads them to Xion, where they learn she has lost the ability to wield her Keyblade. Axel comes up with a scheme where Roxas and Xion go out on missions and Roxas captures enough hearts for both of them.
Begin by opening the chests nearby, but beware, as one of them contains a new mimic-type Heartless, the Cymbal Monkey. Continue down to the Sandlot, where you'll see some familiar faces. Their clues will lead you to the tunnel in the Underground Passage, so head back to the Side Street and slip into the Underground Passage from there. Before heading down to the tunnel entrance in the south, you might want to make a quick trip over to the east section near exit four. The corner there serves as a hiding place for a Bulky Vendor, as well as a bit of graffiti. Once in the tunnel, you will meet up with a "new friend", Pence, who kindly informs you that you have reached a dead end! Head back to the Sandlot.
Once again, you will overhear a tip that sends you to the Usual Spot, so head there, via the Side Street. Look at the green oil drum next to the door to find what you are looking for. Then head back to Pence at the tunnel and talk to him again. Pence will give you a little quiz you must pass to continue. Potential answers, for the chronically lazy, are:
After the quiz, head for the Woods, via the hole in the east wall of the Tram Common. You may also want to go around and collect any treasures you have not snagged already. Once you arrive in the Woods, look for the tree shedding leaves, towards the center south. Strike the tree, then head for the Old Mansion afterward to confront the Veil Lizard. To fight the Zip Slasher, return to the Tunnel after striking the tree and before going to the old mansion. Then go after the boss; there will be a break partway through the battle, after which you can finish it off.