[There was a lengthy delay in Zatanna's own reply. First of all, because she'd have wanted to talk to her nonno about it in private. Allow him to see the Mark up close. So he would already know.]

[This message wasn't for him.]

I was Marked too. Near the end, when I went into that Tower after putting it all back together.

[She'd weighed the pros and cons before deciding, particularly with everyone sharing their own experiences...it was probably more important to be Open about this than keeping it a Secret for personal reasons.]

I spoke to...I don't even know how many Trumps there. It was a voice-only thing, and I could barely keep track of who was saying what. But then one of them Marked me in exchange for information.

[And then, the biggest reason of all to let this be known publicly:]

It was the High Priestess.