On March 18, 2014, Henry takes Addie to the Artifact’s installation on the High Line, where the elevated park has been transformed into a sprawling, dreamlike playground of art, light, and color.

At the entrance, a volunteer distributes colored wristbands that grant access to different exhibit sections called Sky, Voice, and Memory. The volunteer smiles at Henry with milky blue eyes, but as Henry and Addie move forward, the surrounding artists repeatedly turn their attention toward Addie, drawn to her presence even with Henry’s uncanny likability.

They wander through smaller pieces—metal sunflowers, melted crayons, a thin curtain of water, and a cotton-candy sculptor handing out edible art. Henry notes that it all tastes like sugar, and when Addie kisses him, she tastes like sugar, too.

Using the green band, they enter Memory, a rotating, walk-through kaleidoscope of colored glass that warps their sense of space. They cling to each other as the world bends and shifts around them, and neither says it aloud, but Henry senses they are relieved to leave.

They then go into Sky, a tunnel of interlocking rooms that appear plain outside but are immersive within—alternating harsh brightness, deep darkness, fog like a cloud’s interior, and a chamber of chiming, rain-thin filaments. The final room is filled with star-like pinpricks forming a touchable Milky Way, and Addie whispers that after three hundred years, she can still find something new before pulling Henry onward to the next discovery.