The Candle Head, also known as the Verdrum Dough, is a variety of homunculus, the classic magic-bred servitor.
The origins of the Candle Head are unknown. The word "Verdrum" possibly refers to its origin, but it is unclear whether "Verdrum" is a person, place, or thing. Similarly, the Candle Head is a creature of yeast and dough, but nobody has had the opportunity to study it thoroughly. One could possibly determine the origin and lineage of these creatures by study of the yeast that forms them — are they all from some common source, like sourdough, or are they made by different magi in different places?
Whatever the case, some Candle Heads appear to have a facility with magic, and use it while on their inscrutable errands. They may be found in the company of magi, or simply travelling on their own. The following Candle Head has facility with the wizard spell Force Orb as well as a modified version of Magic Missile.
Candle Heads apparently have a rapport with the Grikflit. The Grikflit are relatively docile creatures, deaf, dumb, and blind, that float through the world with an improbable combination of natural buoyancy and telekinesis (their wings are not terribly functional, and really only aid in navigation).
Well, docile isn't precisely accurate. They're docile if they've recently been fed.
Hungry specimens are known to strike at foes, releasing a terrible blast of flatulence before moving in to devour the overwhelmed prey. Taming a Grikflit is more a matter of keeping it well-fed than any sort of animal handling.
The Candle Heads are the only creatures known to ride them, likely because they have a natural tolerance toward the Grikflit's foul stench. For their part, the Grikflit seem to have some sort of empathetic relationship with the Candle Heads, though it may be as simple as appreciating the yeasty smell that accompanies the creatures.
The following Grikflit is a typical example of the species, though larger specimens have been reported.