This was lovely. I was worried when I started that I might have problems following along with the whimsical setting and unreliable narrator, but I'm happy to report that neither of those caused any issue. Despite the ethereal nature of the House, the prose is clear, if not always concise, so everything still felt grounded. I loved the ending—

the way the narrator navigates his existence as a sort of bridge, between Piranesi and Matthew, our world and the House, brought everything together just perfectly.

I also appreciated that even when the narrative/mysteries became distinctly human, the otherworldliness of both the setting and Piranesi's character were never compromised.