I have prepared a report for the King. I believe you should be the one to deliver it to him, along with an account of your findings. Do not worry, there is no doubt that he will commend you for doing your duty to the people of Stormwind.
Your audience is scheduled soon, so you'd best hurry, it's a bit of a ways to Stormwind Keep.
You are to be commended for the service you have done for Stormwind, <name>. If VanCleef had been successful in his machinations, he would no doubt have done considerable harm to the kingdom--something we must obviously avoid.
Take this, <class>, as a token of the King's appreciation. I am only sorry he cannot present it to you himself, but he is away on a diplomatic mission and shall not return for some time.