The Mysterious Cities of Gold - Season 1 - Eps 23: The Jade Mask
In the jungle, Esteban and his friends discover some ruins, deserted temples and pyramids. In one of the temples, Pedro and Sancho try to remove a jade mask from the wall when the mask begins to glow. Suddenly the stone beams shoot out of the walls, ceiling and floor and trip them up.
About The Mysterious Cities of Gold

Title: The Mysterious Cities of Gold
First Air Date: 1982-06-29
Last Air Date: 2021-01-29
Status: Ended
Rating: 7.7/10 (from 72 votes)
Language: JA
Seasons: 5
Total Episodes: 117
Network: NHK G
Genres: Kids, Animation, Action & Adventure, Sci-Fi & Fantasy
Production Companies: Pierrot, DIC, NHK
Synopsis
The adventures of a young Spanish boy named Esteban who joins a voyage to the New World in search of the lost Cities of Gold and his father.
Cast

Rei Sakuma
Zia (voice)

Masako Nozawa
Esteban (voice)

Isao Sasaki
Mendoza (voice)

Junko Hori
Tao (voice)