Yes. I saw her pass through the garden and go round to the study
window.
Miss Marple always sees everything. Gardening is as good as a smoke
screen, and the habit of observing birds through powerful glasses can
always be turned to account.

“Yes, she went inside and waited. Presently Mr. Redding came along
the lane from the village. He came to the Vicarage gate, looked all
round…”
“And saw you, Miss Marple.”
“As a matter of fact, he didn’t see me” said Miss Marple
flushing slightly.

Agatha Christie