From the back of the Adventure:
This Dungeons & Dragons® adventure takes characters from 2nd level to 3rd level. It contains five pregenerated characters so you can start playing right away. Specially designed for Free RPG Day, this adventure includes character hooks, encounter writeups, maps, monster stat blocks, enemy tactics, and even two brand-new monsters and a magic item never before published for 4th Edition D&D®.
The adventure also uses the free Shadow miniature and the free D&D™ Dungeon Tile received at Free RPG Day.