Part 25: Chronopolis - Chrono Cross Guide - IGN

Once everything is done, go to the Dead Sea Ruins (Home), and interact with one of the three glowing points in the water.

Part 15: Party Recruit - Chrono Cross Guide - IGN

Part 03: Arni Village (Another) - Chrono Cross Guide - IGN

Part 28: Terra Tower - Chrono Cross Guide - IGN

Part 25: Chronopolis - Chrono Cross Guide - IGN

Part 09: Hermit's Hideaway - Chrono Cross Guide - IGN

Chrono Cross Strategy Guide - IGNguides

Part 25: Chronopolis - Chrono Cross Guide - IGN

Part 10: S.S. Invincible - Chrono Cross Guide - IGN

Part 15: Party Recruit - Chrono Cross Guide - IGN

Part 25: Chronopolis - Chrono Cross Guide - IGN

Part 10: S.S. Invincible - Chrono Cross Guide - IGN

Part 10: S.S. Invincible - Chrono Cross Guide - IGN