The endlessly imaginative PigPen Theatre Co. comes to Boston with a luminously lo-fi spectacle that elevates traditional storytelling to high art. Their fantastical, song-filled tale takes us to the end of the world when an old man abandons his duty of filling the moon with liquid light to search for his missing wife. With a rollicking array of ever-changing characters, inventive theatrical effects and an infectious contemporary folk sound, these seven young actor-musicians transform the seemingly ordinary into sheer wonder.