In this classic fairy tale, the Prince Nicholas finds that the stories his bodyguard Sir Frielhem tells are only too real. Weird tales of dragons and stone-giants and hearts of lands....and now Frielhem is dead at the hand of that very dragon, and an army of Stone-men is advancing out of Dark Mountain to invade Nordomba and find the gem that commands the entire country. Nicholas, fleeing from the Witch-Queen, descends beneath the earth with the newly freed Stone-king, a Cyclopean stone-giant twelve feet high, to find the Crossbow at the Heart of the Earth that alone can slay the Witch-Queen.