Copernicus Glyph is a gnome master sculptor travelling around Gielinor. He is rebuilding vandalised statues. He requires the player's assistance to decide which statue to build in which region, as he has apparently forgotten. The player's decisions while helping him decide whether they gain Prayer or Slayer experience in addition to their Construction experience.
The statues last for a calendar month, resetting on the 1st.
Dedicating 4 months to building statues to at least 1 god will reward the player with a construction chisel. The construction chisel will boost your ability at construction and help you gain experience faster.
Copernicus holds no belief in any of the gods of Gielinor, even as a gnome he does not care much about Guthix. His quote about "Evil winning because good men do nothing." is a reference to Edmund Burke.