[Though he's had plenty of time to think over his question, Therion still hesitates to ask. Quiet, he trails after Moriarty and considers the couch before he gingerly takes a seat at the far end.]

I assume you've been at this longer than I have.

[At crime? At magic? Either way, really. Therion's only just twenty, and even if he doesn't know how old Moriarty really is, it's a safe bet the man's got a year or thirty's experience over him.]

For years, my powers worked a certain way. Helped me get into places, hide in a crowd. Pick up a nice trinket here and there. ...You know the gist.

[He's familiar with 'this sort of work' and all. Therion laces his fingers together and looks at the professor.]

Can you think of any reason they'd suddenly change on me?