I would like to put forward a game, La-Mulana (MSX graphics). The game is a puzzle-metroidvania, in which mythology and a heavy emphasis on riddles is key to advancing. The riddles and their solutions are often found far apart from each, often with obtuse meaning that requires thinking about what they are trying to say.
Milon's Secret Castle, Simon's Quest, Zelda, King's Quest, Myst, none of these can match the mysterious character of La-Mulana. You may love it, or hate it - but it will not be boring.
Also, I would like Ross to try to seek out the Hell Temple, and to find the treasure hidden within. Does the master of Accursed Farms have the ability to unravel the mysteries of La-Mulana without a guide?