From "UnMythed" by Chris Wind

Gorgons
 

it’s not our glance
that turns you to stone
but your own—

as soon as you see us
                         you become cold
            insensitive
  unable to respond

to ugly women

**
 

The Gorgons were three sisters (Medusa was one of them) who were monsters with ‘snaky hair, most horrible’; whoever looked at them turned instantly to stone.