I fell in love with the Intracranial Cavity of Mary last year. When I found her high atop Section 2 at Old Calvary last summer I guessed she had stood there for well over 100 years, her skull cavity collecting earth and her quiet stare not flinching for longer than any of us has lived.

I coined the word "decraniated" to describe her gaping, shattered skull.

On days when white clouds blanketed the sky above I found that the jagged yet softly weather-worn outline of her skullblast blended in with the whiteness above.

I imagine Zechariah Sitchin, five-hundred-thousand years from now, finding these pictures of Mary. Analysing the pointed flap where her left ear might be Sitchin would conclude that Mary was a Vulcan. Images of pointy-eared human/alien crossbreeds, Sitchin would say, have endured across millennia as subconscious evidence that humans long to connect with their space alien ancestors.

The next time I visit Calvary I will plan to leave something for Zechariah Sitchin inside Mary's head. A coin or a trinket might suffice, but I want to leave something from which conspiracies could grow.

Such an object (evidence of some cosmic mystery) would turn this silent statue of Mary into the focal point of a miracle when someone thousands of centuries from now finds these words, finds the statue of which I speak, and reaches in to the decraniated skull of Mary to find something earthly where her brain used to be.