The first adventure is actually the 2012 Free RPG Day adventure booklet and contains two shorter adventures:
- The Undulating Corruption, a level 5 expedition to cure a wizard of corruption
- The Jeweler that Dealt in Stardust, a level 3 heist where clever thieves can excel.
I won't provide a direct download link, but you can get it from the Dungeon Crawl Classics Facebook Page (look for an April 8th, 2013 post). You should send them another "Like" before downloading.