1. drag and drop empty bottles on the herbs, mushrooms, and cacti to make potions. the color of the plant will tell you what potion you are getting.

2. once you head toward the Lanilor's house, an old lady should attack you. mabey she dropped the key. or it is in the house.

3. the bottle should be in the room Anthrabert was in.

4. to open the chest, hmmm. i think it has something to do with the skull on the top of the chest.