A few year ago, archaeologists discovered a pyramid and found a priceless antique. After the news came out, it attracted a lot of grave robbery and relic hunt from different country. These archaeologists have thus disappeared.
Today, you have received the request from the international association for the preservation of cultural relics to bring the antique back to the museum and find back the missing archaeologists. However, it seems like someone has accidentally triggered the authorities now the pyramid is slowing sinking. You only have an hour to find back the artifact and escape out. Otherwise, you will be one of the mummy in this pyramid.