If you want to poison the water supply,

JUMP TO CHAPTER 4

OR

JUMP TO CHAPTER 5

If you want to Imperio someone,

JUMP TO CHAPTER 6

OR

JUMP TO CHAPTER 7

OR

JUMP TO CHAPTER 8

If you want to blow up the house,

JUMP TO CHAPTER 9

OR

JUMP TO CHAPTER 10

OR

JUMP TO CHAPTER 11

If you want to think things over,

JUMP TO CHAPTER 12