A mile down the road, I saw the street I was looking for. I turned right through a warren of winding lanes and drove up the hill. Water rushed in a torrent along the berm and what looked like entire gravel driveways had washed out into the road. A tree with shallow roots had toppled backward, pulling up a half-moon of soil. Despite the numerous houses in the area, Mother Nature was busy reclaiming her own.

I peered to my right, checking mailboxes as I crept along. I finally spotted the house number Jacob Trigg had given me. Enormous black wrought-iron gates stood open and I drove up a long curving lane between low stone walls. At the top of the slow rise, the parcel became flat and I could see gently undulating acreage sweeping out in all directions. The two-story house was Italianate in feel, elegant and plain with a symmetrical window placement and a small porch in front with a circular balustrade.

I parked and got out. All the ground-floor windows were disconcertingly dark. There was no doorbell and no one answered my repeated knocks. I circled the house, checking for lights or other signs of the inhabitants. The air was still except for the occasional water dripping from the eaves. Had Trigg stood me up? I took a moment to check my bearings. Formal gardens stretched out on either side of house, but there was not a gardener in sight. Probably too wet to do much work.

I started down the sloping lawn, hoping to come across someone who'd tell me if Trigg was home. For the next five minutes, I wandered across the property, grass squishing underfoot where underground springs had suddenly resurfaced. At the end of a row of ornamental pears, I spotted a greenhouse with a small potting shed attached. An electric golf cart was parked nearby. I picked my way forward, mindful of the mud sucking at the soles of my boots.

I could see a man working at a high bench just inside the shed. Despite the cold, he wore khaki shorts and muddy running shoes. There were braces on both legs, secured by what looked like screws driven in on either side of his knees. I could see signs of atrophy in the muscles of his calves. Propped up against the counter beside him was a pair of forearm crutches. The billed cap he wore covered a thatch of gray hair. On the redwood surface in front of him, there were five or six ratty-looking potted plants in various stages of decline.

I paused in the doorway, waiting for acknowledgment before I went in. Beyond the far doorway, the greenhouse opened up, but the angled glass ceiling wasn't visible from where I stood. Most of the side panes were an opaque white, but in places the glass was clear, admitting brighter squares of light. The air was warm and smelled of loam and peat moss. "Hi. Sorry to interrupt, but are you Mr. Trigg?" He scarcely looked up. "That's me. What can I do for you?"

"I'm Kinsey Millhone."

He turned and looked at me blankly, a knot forming between his eyes. His mustache was iron gray and his brows were an untidy mix of black and gray hairs. I guessed he was in his early sixties; red-nosed, jowly, and heavy through his chest, which sloped forward and down into a sizeable belly.

"I was hoping you could answer some questions about Dr. Purcell," I prompted.

His confusion seemed to clear. "Oh, sorry. I forgot you were coming or I'd have waited at the house."

"I should have called to remind you. I appreciate your taking the time to talk to me."

"Hope I can be of help," he said. "Folks call me 'Trigg' so you can skip all the 'mister' stuff. Doesn't seem to fit." He leaned against the crude redwood counter and stirred a quick squirt of detergent into one of two buckets of water sitting side-by-side. He reached for a twig of miniature rosebush festooned with cobwebs. He placed his hand on the soil at the base of the plant, turned it upside down, and dunked it in the water. "I'm surprised you found me. My daughter lives with me, but she's out this morning."

"Well, I did wander quite a bit. I'm glad you don't have a roving pack of attack-trained dogs."

"That bunch is put away for the moment," he said without pause.

I really hoped this was a sample of his dry wit. Hard to tell as his tone of voice and his facial expression didn't change.

"In case you're wondering what I'm up to, I'm not a horticulturist by trade. My daughter has a business taking care of houseplants for folks here in Horton Ravine. She does a bit of hotel work, too-the Edge-water, Montebello Inn, places like that. All live plants; no fresh flowers. I guess they hire someone else to do the big fancy arrangements. She brings me the sickly kids and I nurse 'em back to health." He righted the dripping rosebush and then swished it in the bucket of clear water. He pulled it out, shook it off, and studied the effect. "This little guy's suffering from an infestation of spider mites. Suckers are only a fiftieth of an inch long and look at the damage. Used to have healthy foliage and now it's no more than a twig. I'll keep it in quarantine. We see a lot of root rot, too. People overwater, trying to be helpful between Susan's visits. You a plant person?"