Richard Castle:  Hi .
Receptionist: Merry Christmas !
Kate Beckett: We 're looking for David Dunne .
Receptionist: Oh , Dave 's in the big room , teaching a class .
Richard Castle: Uh ... what is it you do here , exactly ?
Receptionist: We make magic .
Dave Dunne: Again
Dave Dunne: ! Again ! Once again , from the diaphragm ! Outstanding !
Richard Castle: Santa school ?
Kate Beckett: And I bet you _ one _ Santa is missing .