We are now working on an Interactivd Fiction activity with Google Slides. Here is Mr. Hodgson’s sample, called The Bike, using Google Slides. While this is not on the same theme as your theme of an archaeological discovery, it gives you a view of how the Interactive Story works.
Here are some Interactive Fiction stories by students from last year that you might enjoy reading. The best way to view/read the stories is to go full-screen option. As you read/play these stories, start thinking of the story you will be creating.