Printed with tones of gray and inky black, this print shows rows of arched openings reaching into the infinite distance at the dark center of this vertical mezzotint. A fish-shaped lantern hangs from the arch closest to us on all four sides, and a bird with a human skull-like face stands beneath. The walls to the left and right side travel back logically, but we seem to look up at the windows on the bottom edge and down at the windows on the top edge. In other words, the arched top of the opening points toward us at the top edge of the sheet, and the arched opening angles away from us on the bottom edge, making an impossible space. The views out the side windows show cratered landscapes with planets and a comet across the dark sky. Through the bottom arch we look up at swirling galaxies, stars, and planets in a black sky. The views out the top windows are down onto different sized craters that intersect like rings from stones tossed into a still lake. All four walls meet in complete darkness at the center of the composition. The artist signed the work with his blocky monogram in the lower right corner, “XII-’46 MCE.” The artist also signed the lower left margin, “MC Escher No 4” with graphite and inscribed “eigen druk” under the lower right corner.