Wolfe was seated behind his desk, with the evening beer — one empty bottle and two full ones — on a tray in front of him. Joe Groll, in the red leather chair, also had a bottle and glass on the check-writing table beside him. Helen Vardis would have made a good cheesecake shot over by the big globe in an upholstered number that Wolfe himself sometimes used. I was at my own desk, as usual, with my oral report all finished, watching Wolfe inspect the workmanship of the removable bottom of the desk calendar.

He put it down, picked up one of the metal capsules with its dangling thread and gave it another look, put that down too, and turned his half-closed eyes on Joe.

“Mr. Groll.”

“Yes, sir.”

“I don’t know how much sense you have. If you have slightly more than your share, you must realize that if I hand these things to the police with Mr. Goodwin’s story, they will conclude that you are a liar. They will ask, why did you wait until witnesses were present to explore those hiding places? Why did you think they were worth exploring at all? Is it even remotely credible that Mr. Blaney, after preparing that murderous box of cigars, would leave these things there on his desk in a hiding place that a dozen people knew about? They will have other questions, but that’s enough to show that they will end by concluding that you put the capsules in the calendar yourself. Where did you get them?”

“But listen,” Helen Vardis spoke up, “those abditor—”

“Miss Vardis! Please. I don’t want to hear that word again! Mr. Goodwin used it repeatedly because he knew it would annoy me, but I don’t have to stand it from strangers and I won’t. I’m speaking to Mr. Groll. Well, sir?”

Joe said firmly, “I wouldn’t know about how much sense I’ve got, but it happened exactly the way you’ve heard it. As for my waiting for witnesses, I didn’t. I only waited until I was sure Blaney was out of range, up at his Westchester place, and then Goodwin was there and I asked him to come along on the spur of the moment. As for its being remotely credible what you said, there’s nothing Blaney wouldn’t do because he’s crazy. He’s a maniac. You don’t know him, so you don’t know that.”

Wolfe grunted. “The devil I don’t. I do know that. How long have those hiding places been in existence?”

“Some of them for years. Some are more recent.”

Wolfe tapped the desk calendar with a finger. “How long has this been there?”

“Oh—” Joe considered. “Four or five years. It was there before I got in the Army. Look here, Mr. Wolfe, you seem to forget that when I saw those things tonight I had no idea what they were, and I still haven’t. You seem to know they’re the same as the loads in those cigars, and if you do okay, but I don’t.”

“Neither do I.”

“Then what the hell? Maybe they’re full of Chanel Number Five or just fresh air.”

Wolfe nodded. “I was coming to that. If I show them to Mr. Cramer he’ll take them away from me, and also he’ll arrest you as a material witness, and I may possibly need you. We’ll have to find out for ourselves.”

He pushed a button, and in a moment Fritz entered. Wolfe asked him, “Do you remember that metal percolator that someone sent us and we were fools enough to try?”

“Yes, sir.”

“Did you throw it out?”

“No, sir, it’s in the basement.”

“Bring it here, please.”

Fritz went. Wolfe picked up a capsule and frowned at it and then turned to me. “Archie. Get me a piece of newspaper, the can of household oil, and a piece of string.”

Under the circumstances I would have preferred to go out for a walk, but there was a lady present who might need protection, so I did as I was told. When I got back Fritz was there with the percolator, which was two-quart size, made of thick metal. We three men collected at Wolfe’s desk to watch the preparations, but Helen stayed in her chair. With my scissors Wolfe cut a strip of newspaper about two by eight inches, dropped oil on it and rubbed it in with his finger, and rolled it tight into a long, thin, oiled wick. Then he held one end of it against the end of the capsule thread, overlapping a little, and Joe Groll, ready with the piece of string, tied them together. Wolfe opened the lid of the percolator.

“No,” Joe objected. “That might stop it. Anyhow, we don’t want this glass here.”

He finished the job with his swift sure fingers, while Wolfe and Fritz and I watched. Removing the glass cap and the inside contraption from the percolator, he lowered the capsule through the hole, hanging on to the free end of the oiled wick with one hand while with the other he stuffed a scrap of newspaper in the hole just tight enough to keep the wick from slipping on through. Wolfe nodded approvingly and leaned back in his chair. About two inches of the wick was protruding.

“Put it on the floor.” Wolfe pointed. “Over there.”

Joe moved, taking a folder of matches from his pocket, but I intercepted him. “Wait a minute. Gimme.” I took the percolator. “The rest of you go in the hall. I’ll light it.”

Fritz went, and so did Helen, but Joe merely backed to a corner and Wolfe didn’t move from his chair.

I told Wolfe, “I saw Poor’s face and you didn’t. Go in the hall.”

“Nonsense. That little thing?”

“Then I’ll put a blanket over it.”

“No. I want to see it.”

“So do I,” Joe said, “What the hell. I’ll bet it’s a dud.”

I shrugged. “I hope Helen has had a course in first aid.” I put the percolator on the floor over by the couch, about five paces from Wolfe’s desk, lit a match and applied it to the end of the wick, and stood back and watched. An inch of the wick burned in three seconds. “See you at the hospital,” I said cheerily, and beat it to the hall, leaving the door open a crack to see through.

It may have been ten seconds, but it seemed like three times that, before the bang came, and it was a man-size bang, followed immediately by another but different kind of bang. Helen grabbed my arm, but not waiting to enjoy that I swung the door open and stepped through. Joe was still in the corner, looking surprised. Wolfe had twisted around in his chair to gaze at a bruise in the plaster of the wall behind him.

“The percolator lid,” he muttered. “It missed me.”

“Yeah.” I moved across to observe angles and directions. “By about an inch.” I stooped to pick up the percolator lid, bent out of shape. “This would have felt good on your skull.”

Fritz and Helen were back in, and Joe came over with the percolator in his hand. “Feel it,” he said. “Hot. Look how it’s twisted. Some pill, that is. Dynamite or TNT would never do that, not that amount. I wonder what’s in it?” He sighed. “Do you smell anything? I don’t.”

“It’s outrageous,” Wolfe declared. I looked at him in surprise. Instead of being relaxed and thankful for his escape, he was sitting straight in his chair, which meant he was ready to pop with fury. “That thing nearly hit me in the head. This settles it. Against Mr. Poor there may have been a valid grievance. Against me, none.”

“Well, for God’s sake.” I regarded him without approval. “That’s illogical. Nobody aimed it at you. Didn’t I tell you to go in the hall? However, if it made you mad enough to do a little work, fine, here’s Joe and Helen, you can start on them.”

“No.” He got to his feet. “I’m going to bed.” He bowed to Helen. “Good night, Miss Vardis.” He tilted his head a hundredth of an inch at Joe. “Good night, sir. Archie, put these remaining capsules in the safe.” He marched to the door and was gone.

“Quite a guy,” Joe remarked. “He didn’t bat an eye when that thing went off and the lid flew past his ear.”

“Yeah,” I growled. “He has fits. He’s having one now. Instead of taking you two apart and turning you inside out, which is what he should have done, he didn’t even tell you where to head in. Do you tell the police about tonight or not? I would say, for the present, not. Come on. Taxis are hard to find around here, and I’ve got to put the car away anyhow. I’ll drop you somewhere.”

We went. When I got back, some time later, I made a little discovery. Opening the safe to follow my custom of checking the cash last thing at night, I found two hundred bucks gone and an entry in the book for that amount in Wolfe’s handwriting which said, “Saul Panzer, advance on expenses.”

So anyhow Saul was working.