Wagner just arrived back from a trip to the Middle East, Europe, the Midwest (U.S.), and Utah -- along with a letter from Olivia, alerting me to a change in Wagner's condition.
(An excerpt from Olivia's letter:)

Well, as you've probably noticed, Wagner expanded his body, mind, and spirit on this trip. Mostly his body. I don't know how it happened. He had already outgrown himself when he got here, & all I can suppose is that the heat expanded his foam. But he's been in my air-conditioned basement room most of the time, so I can't imagine how he got hot enough to expand further. Dunno. Sorry.

What triggered the foam's expansion properties?

I have no idea. But the result is disconcerting, as you'll see on the next page.

Note: The following material may disturb more sensitive viewers. Parental discretion is advised.

Wagner bursts with enthusiasm. Or something.