Author's Note: I here present my plans for "Stranded in Time: 12,000 BC". Yes, it's short.
Stranded in Time:
Ice Age 12,000 BC – Vengance on Lavos
by Chronos the Cat
Plans:
The Epoch does not "follow" the team to the Last Village after the Fall of Zeal. The Team – minus Crono, of course – finds themselves as part of the group stranded on the island.
Dalton shows up. Defeat him and gain the Blackbird. Now can travel to the island with the cave with the portal – but Magus & Schala's seal remains.
Then the Black Omen appears in the sky...
Scene: Meet with Magus. He warns Marle that if she gets caught up in getting revenge on Lavos for Crono's death, it could consume her life, as it did his. However, if they find a way to confront Lavos, count Magus in.
Try to make way into Omen, but not strong enough yet. (Weeks/Months/Years?) spent training.
Finally (alongside Magus?) battle through Omen, defeat Zeal and Lavos.
(When are they deposited? Back in c. 12,000 BC, or in AD 1000?)
Epilogue (12,000 BC Version): Can Lucca scrounge up enough up enough Zeal tech to build a new Epoch? Or can they find where Epoch crashed and repair it? If not, they must live out their lives in the past, but if Lucca can get a workable time-machine going, when the group reach the end of time, Gaspar gives them the Time Egg and send them on a quest to save Crono.
Epilogue (1000 AD Version): Marle and Lucca are home at last, and Lavos defeated... But Chrono is still dead... Luckily they still have the Gate Key, and Gaspar has a Time Egg to give them...