This campaign is based upon two of the earliest published adventures for 5th edition Dungeons & Dragons, Hoard of the Dragon Queen and The Rise of Tiamat. These adventures were published by Kobold Press and Wizards of the Coast in 2014 and are sometimes referred to collectively as The Tyranny of Dragons. This is my first time running a campaign based upon this adventure.
It is worth noting that I had originally planned to run a different adventure for this campaign, one based upon the Out of the Abyss adventure, but after the first game session I changed my mind and never looked back. Another unusual feature of this campaign (unusual for me, anyway) is that it's not set in the World of Greyhawk setting but instead takes place in the Forgotten Realms.