Marie-Jean-Leon Lucoq's Memento Mori

Marie-Jean-Leon's Memento Mori
"Remember Death"


Marie-Jean-Leon, Marquis d'Hervey de Saint Demys


Memento Mori


Creates physical objects imagined by lucid dreaming


Objects are unstable and may alter themselves



Collected by

Warehouse 12



Date of Collection




Marie-Jean-Leon Lecoq, Baron d'Hervey de Juchereau, Marquis d'Hervey de Saint-Demys was a ninteenth-century man of letters and one of the earliest known oneirologists. He recorded his dreams since the age of thirteen. In his journals, he described experiences of dreams where he was aware he was dreaming, making his work the first recorded instance of lucid dreams.

Memento Mori is a Latin phrase that translates as Remember Death or more commonly Remember you will die". It was popular during the eighteenth and ninteenth centuries for scholars and philosophers to have some form of imagery in their studies, typically near to where they worked, to serve as a reminder of mortality and the fragility of life. Such things were usually skulls or hourglasses made from various materials, bone being quite popular in Eastern countries.


When the Memento Mori, a skull carved of jade, is held, the holder will enter a state of lucid dreaming. The holder can still move and is aware of the world around them, but they are prone to hallucinations. Any object imagined by the holder will manifest in a physical form that is visible to anyone, and it will display any attibutes typical of a real thing. Any objects conjured by the artifact will remain until it is neutralised.

There are several unusual limitations to the artifact. The effects of the lucid dream only extend to what the holder can see, nothing can materialise out of the users point of veiw. Living things conjured by the artifact will act as expected while the dream state continues, but will display odd and unperdicateble behaivour when left to their own devices. It would seem that for living beings to function perfectly outside of the dream, their personality and behaivour must be set in excruciating detail, leading to rules against users manifesting them.

The only way to erase manifestations is for the dreamer to be the one to neutralise the skull, leaving the conjurings of others intact. If the dreamer dies, the manifestations will also vanish, proving a direct and lasting link between the dreamer and his or her dreams. Entering an unconscious dream around the manifestations in dangerous, as not being able to control dreams tends to warp the conjured objects in strange and unpredictable ways.

Community content is available under CC-BY-SA unless otherwise noted.