Dead Man's Mirror

The mirror plays such a crucial role in the plot—I'm curious if it was a symbolic choice or a clever literary device. How did Christie decide to incorporate it into the mystery?

His quirks always stand out, but I wonder if they serve to deepen his character or sometimes detract from the suspense. What’s your take?

I loved the cleverness, but at times felt it moved quickly—was that intentional to keep the tension high or just Christie’s style?