She was hidden from them, however, by the wall.

Jennie Faxton, who had been on guard while John and Dorothy were at the gate, at Dorothy's suggestion stood on top of the stile where she could easily be seen by Sir George when he approached.
"When my father comes here and questions you," said Dorothy to Jennie Faxton, "tell him that the man whom he attacked was your sweetheart." "Never fear, mistress," responded Jennie.

"I will have a fine story for the master." Dorothy crouched inside the wall under the shadow of a bush, and Jennie waited on the top of the stile.

Sir George, thinking the girl was Dorothy, lost no time in approaching her.

He caught her roughly by the arm and turned her around that he might see her face.
"By God, Guild," he muttered, "I have made a mistake.