Maybe it's seafood related - but then that would be clamdestine...in any case something smells fishy.
And it ain't this post - I just looked it up. I could have looked at the other entries this week (which I'll do in a minute, but now that christmas is over, I have time to post something)...
Kept or done in secret, often in order to conceal an illicit or improper purpose. See Synonyms at secret.
So this is a piece I did. It's Adelia sneaking away from her balloon friend. It was sort of my transition piece away from my first Adelia book (still unpublished). It was about Adelia and her red balloon - but neither Adelia nor I wanted to bog her down in trying to find a way to fit the balloon into every Adelia drawing....so she's leaving the balloon behind.