As you gather anything you have found, you start heading back to the tower in hopes of warning everyone of the attack. A little over halfway to the tower, a guard from the tower meets you, panting and bloody.
"Hurry!" he says with almost no breath left.
"The tower is in danger! A blue dragon flew over, and then the barrier suddenly turned off... One of the guards, Zvegdar, was a traitor. The commander managed to heavily wound the dragon with magic, blowing one of its wings off, but then the traitor took Glaezentorg and drove it through her! If you don't hurry.... they are going to kill all of the mages... in some ritual..." He suddenly runs out of breath, panting so much you can't understand anything else he barely manages to say. You realize there is no time to lose and he is too winded to provide any further answers.
As you get close to the tower, you see two clear issues. Atop the tower is magical light, presumably the ritual the guard mentioned. The only way is through the tower itself, which you can enter as the barrier is down. However, you see the blue dragon, heavily wounded and weakened, but still strong enough to rampage and attack. It is trying to find anyone else in the grounds at the base of the tower. You think you can sneak past the dragon and go straight for the tower, but you see the dragon is slowly regaining strength. What do you do?
Your question here... Public
Go for the tower and deal with the dragon afterwards
Kill the dragon now and then go to the tower
OOC:
As a bit if out of character knowledge, the adventure says you level up after you do 1 of the 2 things. Whichever you do first, you will be level 1 as you are now. If you don't retreat, you will level up (but I don't think you get a full heal up) and can face the other threat as 2nd level characters.