WILLIAM. [Not understanding the last word—puzzled.] Eh?
PETER. To-morrow …
WILLIAM. [After a slight pause.] To-morrow …
PETER. Catherine's—
WILLIAM. [Looks at CATHERINE—hesitating.] Your—[Stops. CATHERINE gives the DOCTOR a quick glance—she seems to divine the message.
DR. MACPHERSON. [Prompting.] Her—
CATHERINE. What, William? What of to-morrow?
PETER. She must not marry Frederik.
WILLIAM. I mustn't say that.
DR. MACPHERSON. What?