Robin Hood and His Merry Men #28

Robin Hood and his men devise a plan to rescue Maid Marian and Little John, who have been taken prisoner at a castle. After infiltrating the castle by disguising themselves as followers of Prince John, they successfully liberate the prisoners and escape. During their getaway, Robin Hood encounters an old man in the water who has been saved by a magical coin; the man credits the coin with preserving his life and warns that breaking its spell requires speaking specific words before the coin loses its power.