When Mr. White says, "For God's sake, don't let it in!", we can reasonably infer that...

Mr. White thinks the company is coming back for their money.

Mr. White is afraid Herbert is seeking revenge on his parents.

Mr. White is afraid of what his son might look like coming back from the dead.

Mr. White never wanted Herbert to be alive again.

1 answer

From the context of Mr. White's exclamation, "For God's sake, don't let it in!", we can reasonably infer that:

Mr. White is afraid of what his son might look like coming back from the dead.

This statement suggests that he has a strong fear related to the consequences of the wish that brought his son back, indicating his concern about the nature of his son's return rather than a concern about money or revenge.