There have been rumors of The Three planning attacks on the tower, and separate rumors claim that goblins have been seen in the area who have odd tattoos on their face. The archmage mentioned a weapon named Glaezentorg that, along with some gold, would be your reward for helping keep the tower safe.
Your instructions were to meet each other at a fort of the Dragon Emperor before heading to the tower. The captain of the fort, a human named Yushif, has been told of your arrival and is expecting each of you. As you arrive, he answers any questions you have and then escorts you to a dining area where the soldiers are being fed. He explains that there is enough for each of you and offers you some. It is not the most appetizing but all the nutrition you need is found within. Once you all arrive, he will give you directions to Boltstrike tower.
As a reminder: if you roll a 6, at some point before the next full heal up you should get a boon from that icon. This can be information, a magic item, story events centered around your character, or other things in that realm (GM has final say, but players can make suggestions). On a 5, you get the result of a 6, but there is a complication. Perhaps the information is faulty or lacking a crucial detail, or the magic item is a loaner you must give back later, or the NPC will require a favor now or later. The bigger the boon, the bigger the complication.