I got a sheep from an adventure but it was so long ago I'm afraid I do not recall which adventure it was, sorry. Probably bandits. I'm sure I didn't have desert sands available yet when I got it, and probably not dark caves yet either.
But I haven't gotten anything actually
useful from an adventure for many, many weeks. I actually pretty much stopped bothering to adventure for a while. But I just opened the plume hive and I need faerie supplies so I'm regular adventuring again now that there is no more trick-or-treating to be done.
Back before I quiet adventuring for a while, I got a sheep, 2 maple trees, a lemon tree, 2 glimmerdust troves, and 4 dark cave formations in addition to the 9 overgrown benches and other assorted decorations.