Lumen Flies

Lumen Flies are an entity in Marrow.

Description
Lumen Flies exist all throughout the world of Marrow. They serve to guide the player and point out key locations. They range in color from White to Red, Green, Yellow, and Blue, though white is the most common color. Red Lumen Flies typically warn Daniel of danger, while Green Lumen Flies promise safety.

Lumen flies will always mimic the color of the Resonant Orb and resonate alone with the note played on the orb as well. Lumen Flies will inform the player of several codes that must be played on the Resonant Orb in order to solve many puzzles throughout the game.

Lore
The Lumen Flies appear to be related to the boss, The Lumen Caster