Here is The Tomb Raiders game. It is team based writing practice, very similar to the English Espionage game I did for lesson 8 (my classes really liked it). Each group is divided into two pairs, each responsible for decoding a message written in "hieroglyphics" or for listening to the other pair and writing the message on a whiteboard.
The activity is timed by the barge going down the Nile--timing definitely increases students' enjoyment. Print off one copy of the code sheet for each group.