The rogues visited a temple to the Ecstasy of the Flesh. The focal point of the sanctuary was a 20 foot tall roughly woman-shaped statue made of wax.
Supplicants would write their prayers on tiny vellum strips, roll them up, and put them in brass cylinders with one open end. Then they would push the open end into the waxy flesh of the statue.
Once a year, the statue is melted, the vellum flaring and glittering away. In the meantime, the brass studs all over the statue gave it a sequined look, or a reflection of what stars must once have looked like.
The scoundrels did NOT choose to put their own prayers in the effigy.