Murdoc snaps into a straight sitting position as he hears the knock. He runs a hand through his hair, trying not to look too dishevelled even though his face already shows how irritable and exhausted he is.

"Come in." He calls out, not leaving his desk. He sets papers in front of him, idly checking them as if he's terribly busy and was not at all expecting Karkat. He has totally forgotten the journal tossed across the room.