The door ruminates for a moment, but eventually concedes with an "Oh, very well." Its face morphs back into the clean wood and it swings open, allowing you entry into a small greeting hall. Two lines of multicloured cloaks are hung on opposite walls, along with there being a half-dozen chairs and benches set for relaxing. The white flame burning in a fireplace tells you it's magical, though this one at least gives off heat as well as light. Notably, there are no doors, save the one you entered from.
A small, winged black cat sits on a table, watching you with gleaming eyes. "The Master will be with you shortly."
Sure enough, after a few minutes one of the far walls distorts and warps, opening to reveal a middle-aged human, with dark brown hair neatly trimmed and perfectly coiffed, matching his short beard. He carries himself with an air of noble distinction when he steps through, and clearly appears to be a man of some means, given his deep sea-blue robe trimmed with elegant gold patterns. His hand rests upon a cane, though he doesn't seem to need it to walk, and from the gemstones inset in the wood you could take it to be magical. He looks you over, standing beside the winged, talking cat.
"My door informed me an astronomy student of Gorion's wished to speak about the stars. Looking at your group, I believe you lied. Tell me why you're here, before I call the guards."
Spoiler: History
Whatever laws of equality may have been structured to be originally, they were whittled down by endless niche exceptions carved out by spellcasters to protect their own interests.
These days the rules are broad and simple: Binding (or enslaving) planar creatures - which would include fey nymphs - is permitted, since it falls under the same exceptions as calling familiars or other summoned creatures. This may be revoked for individuals if such binding causes public unrest or disturbance.
Grepha
Grepha holes up for a moment, hoping against hope that the Froghemoth will move past without spotting her. The great lumbering creature stomps along the sewer, whipping its free tentacles this way and that as it searches for additional sources of nutrients. Though she tried her best to remove the stink of blood and hell on her and replace it with the grime of the sewer, the under-dweller is familiar with such deceptions, and lowers its eyestalk to again look directly at her, its tentacles streaming towards the imp.
Spoiler: OOC
They've got a PP of 19, so 17 is sadly not good enough.
Grepha is adjacent to the Froghemoth and won on initiative. I'm not doing a map for it, I doubt I'll need to. Grepha's up.