An hour later: “I’ll have patrol follow up tomorrow, try to get hold of Katrina’s girlfriends. For all we know, they’ll tell us a whole different story. Like she’s with some bum Mommy wouldn’t approve of. And don’t bring up O-positive anymore. I’m not feeling popular.”

Light butterscotched the windows of Robin’s studio out back. I walked past the pond, stopped to check out the baby koi. The antique iron pagoda lights reached down to the floor, giving an easy view of the fish. Three, four inches long, now. Bobbing merrily in the current set off by the waterfall.

I’d first spotted them as larva-sized hatchlings. A dozen little scraps of fishy filament, swimming fearlessly among two-foot-long adults. Koi will eat their own eggs but once the young are born, they’ll never inflict harm. Unlike other fish, they don’t harass sick or dying cohorts. Maybe that’s why they can live over a century.

I continued to the studio, rapped the window. Robin looked up from her bench and smiled. Placed a white rectangle of Alpine spruce to her ear and tapped. Searching for the tones that told her the wood might be suitable as a soundboard. From the size of the plank, a mandolin board.

Her expression as she placed it to the side said no such luck. By the time I entered, she had another piece in hand. Blanche nestled in her lap, serene as ever.

Robin said, “Hi.” Blanche let out a wheezy bulldog welcome.

When Robin kissed me, Blanche turned her head sideways in that bulldog way and nuzzled my hand.

I said, “A blonde and a redhead.”

“Aren’t you the lucky one.”

I eyed the discarded spruce. “No music in there?”

“Even though he’d never know the difference.” She eyed a FedEx box in the corner. “Learn anything about that poor old woman?”

“The working assumption is the son had something to do with it but there’s nothing even close to proof.”

“A son doing that to his mother,” she said. “Beyond belief.”

She eyed the box in the corner again.

I said, “New tools?”

“Collection of DVDs. From Dot-com. Ten Audrey Hepburn movies and a note that said I remind him of her.”

Hepburn had been five seven and built like a human clothes hanger. Robin’s five three on a good day, curvy everywhere you look.

“You’re both gorgeous.”

She flexed her fingers, the way she does when she’s edgy.

“Has he ever been inappropriate?”

“Not really.”

“Not really?”

“When I met him at the luthiery show he was a little touchy, but nothing you could say was out of line.”

“Well, then,” I said. “Audrey Hepburn made some good flicks.”

“I’m overreacting, huh?”

“He could be working on a few fantasies. Happens all the time.”

“What do you mean?”

“Men are always looking at you. You’ve got the X factor — pheromones, whatever.”

“Oh, sure.”