[Wait what who is this he could have sworn there was nobody -

Ahem.

Though the Exarch stiffens he takes a good moment to compose himself before he answers. There is still a tightness to his voice, a little embarrassed at being overheard.]

I hadn't realised there was anyone nearby! Apologies, I don't much like for others to hear...

[Wait.]

...you mean to say this is your doing?

[He turns the book to show the stranger the musical scrawlings covering the page.]