Thank you for the comment, I will look into fixing the Zap potion for crafting and making it slightly easier to brew, but that was the intent with that potion. I also think that making mistakes is costly, I have to do some checking on the long term economy of the game. Making the arrow keys flip through the book should be easy enough, I would also like to add a bookmark system at some point in the future. Thank you for the important input to improve the game.