Charles-Louis de Maere
Here's a scenario that I was trying to find an answer to from a play of the game today:
Player goes to Atlantis and rescues the prisoner. Then moves to Egypt and gets cursed.
The question is, does the curse prevent the player from dropping the prisoner off safely at the Century Club, or can they do so even when cursed?
From the description I'm not sure how/why the player got cursed.
You only get cursed if you accomplish the mission in Egypt. So, if the player was trying to accomplish the mission in Egypt while rescuing the prisoner from Atlantis, then it's not possible. He'd have to get cured first before he could even dream of returning to the Century Club. Basically, when you rescue the prisoner, you have two more turns to try and reach the middle Century Club location.
However, from your description, it seems that on his way back to the Century Club, the player stopped by in Egypt (and didn't even try to complete the mission). In this case, he's safe from the mummy's curse.