Board Thread:Episode Discussion/@comment-24573226-20170121144613/@comment-4010415-20170121175534

Lord Jaric wrote: Little Ren was adorable. So is Ren's semblance invincibility, perhaps suppressing emotions​. Probably not invisibility, or they would've shown it differently.

We're debating what to say about it in the article pages in the staff chat, but so far we've come to a consensus of


 * Ren and Nora seemed to be undetected by the Grimm, definitely by lack of negative emotion, maybe also by sight and sound but that's unclear


 * We're gonna have to be very careful on wording this on the articles so it doesn't come off as speculation and doesn't use the naughty phrasing of "It is unknown if" (We've been undoing people's edits for saying "It is unknown if X" because that can stack up really fast and clutter pages just like "first" trivia)