Skuba could not be dissuaded. He asked for just three things - the carcass of a lamb, some mustard seed and a quantity of sulfur. Intrigued, King Krak ordered that he be given his supplies.
The shoemaker hurriedly rummaged through his own belongings and extracted a few key items. Collecting them all together, he strolled down to the very edge of the River Vistula, just below the cave where the Wawel Dragon slumbered.
Skuba cut open the belly of the lamb and prepared the cavity inside. He placed a quantity of pitch, the sulfur and the mustard seed into the stomach, then took out his twine and carefully stitched the carcass closed.
He was a shoemaker. His needlework was neat. By the time he'd finished, nobody could even see the join. They were all watching, from the castle's windows or hidey-holes along the river bank.
Twilight was already falling and the great roar sounded within the cave. Skuba looked up, startled, then fled behind the nearest bush.
Out in the open, the dead lamb lay, its belly filled with poison.
Smok Wawelski stomped from its cave, hungry and after sustenance. Its gaze couldn't miss the bait left out for it to devour, and it did. With one swoop of its might head, it had the whole lamb between its jaws and swallowed it without a bite.
Everyone waited. Smok Wawelski seemed ready to take to the skies, after more supper, more meat. But then it stopped dead. Roaring, shrieking, stomping on the spot. Suddenly the beast plunged forward, down towards the River Vistula. It seemed possessed of an unquenchable thirst. It drank and drank and drank.
Then the dragon stood upright on its haunches. Its mouth gaped wide, as everybody steeled themselves to witness the terrifying burst of fire. It came louder and more startling than any but the shoemaker had anticipated.
With a horrific scream of pain, Smok Wawelski exploded. Krakow's ordeal was over.
King Kraw was an honorable man and good to his word. Skuba the Shoemaker married Princess Wanda and became king of Krakow in his turn.