Axe

King's Quest IV: The Perils of Rosella
Rosella scared the trees of the Scarry Wooods with an axe she had picked up in the Ogre family's house, allowing her to get to the Skull Cave behind them.

King's Quest: Mask of Eternity
After defeating the spriggans defending the windmill. He entered and found a sharp axe embedded in an overhead ceiling beam. By moving a bail of hay underneath the axe was he able to reach the new weapon. He discarded his Dagger since he no longer needed it with the stronger weapon. He soon was able to test his new weapon as he was attacked by a henchman upon exiting the windmill. With the Axe he was able to get into boarded up Alchemist's shop, and also knock down a tree into the river near the Grinding Mill to stop the mills press so he could reach the rope and hook.