You can investigate Ancient Passageway with the following character:

- Lumberjack Lois

- Cavewoman Meg

When you complete investigating Ancient Passageway, you have a chance to find the following:

- 3 Multiverse Nuns

- 3 Wild Dinosaurs

- 3 Buff Gerbils

- Vial of Plasmas

You will need 4 Firm Bats to investigate this room!