She showed him the receipt, and Stephen sucked in a breath. Instead of his normal, made-for-portraits elegant flourish, the paper bore a childish printing: Stevie C.

A second later, he pasted on his most charming grin. "Just testing. You passed! Congratulations. Now gimme."

Ooh. Am I sensing a little co-control here for Stevie and Stephen? ("Gimme" seems like a child's word.)

"You really don't remember getting a photo of me anywhere?"
...
"Don't be silly, Jon," interrupted Stephen. "I've never—" Breaking off, he lowered his voice. "Before this week, I've never called you for help."

A whisper at the back of his mind (don't listen to him don't let him scare you), and he almost missed what Jon said next: "Stephen, are you still having memory problems? Not just for the, uh, the stuff you used to do, but more recently?"

I love this conversation, as Jon starts to get a clearer and clearer idea of what is going on here, even with Stephen's emphatic denial.

"Shake it off, Col-bert," hissed Stephen. "Zaphod is plenty important. Besides, you'll go back to the doctor tomorrow, and Jon will be there, and you'll be able to talk until you turn blue, and everything will be fine. Now man up and get some rest."

Can't wait to see what actually happens when he does go back.