The Colonel’s Bequest is an adventure game originally released in 1989 for MS-DOS. It was made by Sierra co-founder Roberta Williams, who is most famous for being the creator of the King’s Quest series. Nine years prior, she created a game for Apple II computers named Mystery House. Both games drew inspiration from Agatha Christie’s novel, And Then There Were None, in that they feature the protagonist being introduced to a cast of characters who, one-by-one, end up murdered. Though practically unplayable by today’s standards, Mystery House has its rightful place in history for being the first adventure game to feature graphics. This fact coupled with the King’s Quest series experiencing much more commercial success have made The Colonel’s Bequest something of a forgotten game in Sierra’s lineup.