The boy opened the box and he noticed at once, though he didn't take in the full implications of it, that the box was much larger inside than outside. He began to unload things out of it, treasures, misunderstood and complicated treasures, old gold with deep incrustations of sea scum, rough maps with the lettering in Chaldee, live birds of the psittacine sort, Arabian gumtrees, clavicles of saints, kidskin scrolls, astrolabes, gnomon dials that will read correctly only at the location of Cos-Megara, the third city of Atlantis, the stones named Shamba that are found only in variant readings of the Apocalypse--all the things that are commonly found in old boxes, but in unusual profusion here.
Then the boy noticed that, however many things he unloaded out of that box, the box still stood full. The box is Aloysius Shiplap, and I am that boy.
-R. A. Lafferty, Arrive at Easterwine: The Autobiography of a Ktistec Machine (1971)