King's Quest IV: The Perils of Rosella was released in 1988. Besides improved resolution on its 16-color EGA graphics, it is also one of the first PC games that support a sound card.
In King's Quest IV, we will take on the role of Princess Rosella, daughter of King Graham of Daventry and the twin sister of Alexander.
The story begins when King Graham has suffered a heart attack and is on the brink of death. While Rosella is trying to find ways to rescue her father, the good fairy Genesta contacts Rosella through the magic mirror and offers her assistance. Genesta teleports Rosella to the land of Tamir, where she learns about a magical fruit that can heal her father.
However, Genesta herself is in a weakened state because the evil fairy Lolotte stole the talisman that gives Genesta power. If Rosella cannot return the talisman to Genesta, the good fairy will be unable to help her return to Daventry in time to save her father. So in addition to finding a way to obtain the magic fruit, Rosella must win Lolotte's trust. She is charged with performing three tasks for the evil fairy, after which she has the opportunity to recover the stolen talisman.
Even though the main quest is to retrieve the magic fruit to save King Graham, we can return to Daventry without the magic fruit to see the alternate ending to the game.
In King's Quest IV, the action takes place in real-time. The events of the game cover about 24 hours. Some activities must be completed during the day, while other puzzles can be solved only at night.
You can download King's Quest IV with its walkthrough here.