Question: Why didn't they stay in the store with all the food? The one guy suggests it and they bring up the fact that some others are still at the house and will starve... But couldn't they have just used the car to go back and collect them and bring them to the store? Alternatively, why didn't they make multiple trips to the store to bring back as much food as they could? They could have come back, unloaded and then gone straight back out again (meaning the car couldn't have been stolen). By this point they knew it was safe, they could have even have just sent 2 people giving them more space in the car to load it with supplies.
Question: Why would Lewis confess to Jonathan and Florence that he brought back Issac from the dead? He could've kept it a secret to avoid being yelled at.
Answer: After what happened to Charlie, they were discouraged from staying or returning to the store.
Rassdyt