For about nine seconds he had me rattled, and I came mighty near getting cold feet and trying to sell him some plate-glass

"For about nine seconds he had me rattled, and I came mighty near getting cold feet and trying to sell him some plate-glass. But I got my nerve back pretty quick. He asked me to sit down and I told him everything.”
(a) Identify ‘I’ in the above extract.
(b) Why was he getting so nervous?
© Which word in the extract is a synonym of ‘unnerved’?

(a) T here refers to John A Pescud.
(b) He was getting so nervous because he was meeting Colonel Allyn for the first time at his mansion. He was going to tell him everything about his feelings for Jessie.
© The word is ‘rattled’.