Where did Sanballat and Geshem ask Nehemiah to meet them, planning to harm him?

Answer: The plain of Ono

They invited him to meet in one of the villages on the plain of Ono, but they were planning to harm him.

“Sanballat and Geshem sent me this message: “Come, let us meet together in one of the villages on the plain of Ono.” But they were planning to harm me.”— Nehemiah 6:2 (BSB)