If I understand the rules of this game correctly, I believe one has to use the second word of the immediately preceding post as the first word of your own post (for example, fall foliage --> foliage tour). That is what I believe makes this game different from the "Two Words with a Twist" game, where either of the two words in the prior post may be used as either the first or second word of your own post. I confuse the two games every now and then, and I'm the person who started "Two Words with a Twist" so you'd think I would know better!
Anyway, using the post "fall in" as my starting point, the word I have to use as the first word of my post is "in."
In deep