[He accepts the book and promptly dispels the illusion - it's back to looking like a perfectly normal book, albeit with those weird marks all over the back. In purple ink, of course.]

I would appreciate it. I attempted to ask Shin for more information about it, but he seemed unwilling to tell me everything he knows.

[Which is fair, it's not like he trusts Shin either, but come on!! Research!!!]

Can you summon a double here? I would like a chance to examine it further.