The best way to avoid Zoe asking for other types of repayment—giving a large sum of money.

Zoe was shocked. "Mr. Foster, please don't. Shea's condition requires more than one surgery. You should know that even though her intelligence has improved, it has only improved by a little. After she recovers from this operation, if you want to continue giving her the treatment, there may be a second, third, or more operations in the future."

As Elliot listened to Zoe's explanation, he kept silent. Zoe