The robin hopped on to an old climbing plant on the wall and sang his most beautiful song.
Suddenly the wind made the plant move and Mary saw something under the dark green leaves.
The thick, heavy plant was covering a door.Mary's heart was beating fast and her hands were shaking as she pushed the leaves away and found the keyhole.
She took the key out of her pocket,and it fitted the hole.Using both hands.
she managed to unlock the door.Then she turned round to see if anyone was watching.
But there was no one, so she pushed the door,which opened, slowly, for the first time in ten years.
She walked quickly in and shut the door behind her.At last she was inside the secret garden