And he said to the young king, "My son, I will gladly help you, as I helped your father; and I will give you that seventh statue of diamond which you desire.

But I must ask for a gift in return.

You must bring to me here a young girl of about sixteen years old; and she must be very intelligent; and she must be a true maiden, not only as to her body, but as to her soul, and heart, and all her thoughts." The young king thought that was a very easy thing to find, but the king of the Spirits assured him that it was not, and further told him this, "My son, no mortal man is wise enough to know by his own wisdom the purity that is in the heart of a young girl.

Only by the help of this magical mirror, which I now lend you, will you be able to know.

Look at the reflection of any maiden in this mirror, and then, if her heart is perfectly good and pure, the mirror will remain bright.