Just through the trees is the Castle of Darkness. Once you see it, you'll be struck blind until you leave, but hidden in a secret treasure room somewhere in the castle is the Emerald Elephant of Cipangu. The touch of the elephant will give you the priceless gift of far sight, which will let you see to the ends of the earth. Whatever place you think of, you will see.
You will be guided by a small firefly which is not what it seems...
Notes
Published as part of a guide to programming in Ahoy! magazine, issues 9 and 10, September and October 1984.