Snow Script, or Niphadic, was invented by Simon Whitechapel to write his constructed language, Niphadic. He uses it in his story, Our Lady of the Snows.
The name Niphadic comes from the Greek νιφας-νιφαδος, niphas-niphados (snowflake), and was used by the priestesses of Our Lady of the Snows and was based on a series of snowflakes that fell at the hibernal solstice during the foundation of Our Lady's Second Temple.
The text on the left is just a list of Snow Script consonants. The text on the right is one that praises Our Lady for the deliverance of a hierarchess from illness.
Further details of Snow Script and Simon's other scripts
http://www.gwywyr.com/scripts/snow.html
Lovecraftian Script | Snow Script | Rotor Script