You make your way out of Zaron's home/lab and into the city. It feels so strange to see a bustling city full of people.
You notice that the city is built over rock and water, thus protecting the people from the scourge affecting the outside, but also giving little room for the city to grow outward.
Zaron's lab is on the eastern part of the city. He leads your group north through the streets to some sort of temple (the yellow circle with a cross).
Inside, he introduces you to the lead cleric: Herrendon. When Herrendon hears your plight and desire to restore the magic to your weapons and items, he nods thoughtfully and brings you toward the back of the chapel area to an inner sanctum.
Inside this brick enclosed room is a large tub about 15 feet long by 8 feet wide. The tub is filled with an incandescent orangish fluid that appears to glow slightly from within.
Herrendon addresses you: "As you know, magic is dangerous, and can be used for good or ill. We will restore magic to your items but require something in return. You may choose among two options."
He gestures to the temple and its majesty, with many golden walls and ornate statues. "The first option is that you pay 1000 of His Majesty's gold--none of that other kingdom gold, mind you, but something we can spend for upkeep for our good deeds--and you must take a vow. What that vow will be will only be revealed through prayers of our priests, and we cannot make the prayers until we have your promise of a vow."
He looks at you in turn. "The second option is that you will perform a favor for our priests. This will entail attending a party at the castle, gathering information, and perhaps helping quell an evil, if our suspicions are right."
He spreads his hands. "What say you?"
NOTE: Feel free to discuss among yourselves here. The temple will feed you dinner as you decide whether to take either or none of these options.