I couldn't find where the invisible tattoo of the Carcerian Sign is located on the Shackleborn. Anyone know if this is noted anywhere? I have the hardback version. Though the party is just entering Chapter 2, one of the characters is a warlock and has the See the Unseen evocation (darkvision and see invisible). So what is the chance that he noticed the sign on Terrem? He also happened to have noticed the beholder's assistant.
