In the dim light of the dungeon beneath Zaybinthraul's Tower, Mairkurion works late into the night. He has ground the bones of a rare astral dragon into chalk, which he now uses to draw a complicated diagram on the floor. Intricate pipe work in the ceiling has been filled from a tank containing charged aether. All preparation for the creation of a portal are now complete. He begins intoning a spell in the tongue of the Ancient Tuthaena. The lights in the room begin to flicker as the diagram burns into the stone floor with a blue glow. When the spell is complete he walks to the edge of the portal and shouts into it:
Aztrucomon! Can you hear me?
Aztrucomon led his students into the field, the night seeming to darken as the lights of the university receded. He addressed his students, "Who can show me Orion?" "Is it there," said a young boy, "its something like three stars." Aztrucomon stooped to look up the length of the boy's arm. "I think you point at Taurus. Look, there." A beam of light shot from the wizard's finger and he continued. "That is Orion. See the red star. It's quite red. That is Betelgeuse, and then past the belt, in the sword. Can you see it? It is like a cloud, a bit of haze." "What is it?" a student asked. "Why, that it is a conflux of aether, like a storm, but in one of the outer spheres. Aether can glow when excited, the medium's celestial qualities..." A sudden bang startled the youngsters and lightning crackled from a point above their heads. Children ran screaming toward the school. A voice thundered, "Aztrucomon! Can you hear me?" "Wait!" yelled the teacher after his fleeing students, but it was useless. "Really, Mairkurion," said the teacher with a shake of his head, "A whispering wind would have been sufficient without sending them fluttering like a flock of quail. How shall I ever get their courage back up? Yes, I hear you."
Good! The portal has been activated. Do you want to try it?
Of course! If this works it will be like you live next door. Now let me just find my astrolabe. Ok, ready. Here I come.
A hand reaches into the portal to steady the wizard-astronomer as he steps through. This dungeon looks like none he has seen before at Hanalore House, and he experiences a moment of disequilibrium as his feet find solid purchase on stone beyond the pulsating and fluxing magic circle.
Welcome to Paizo, my friend. Seems Master Zaybin built himself a small tower in this world. You will find much lore here--forgotten, discarded, or newly discovered.