Dull. Unbelievably dull.

And soon, dead.

On his second visit, inspecting her kitchen, Koller hit pay dirt. A corked half-filled bottle of the Syrah on the counter, and a bee-sting kit with an epinephrine auto-injector in the refrigerator.

World-famous Abigail Spielmann, the foremost authority on surgery involving cardiac tumors, had an Achilles’ heel.

Koller wondered if he had made some sort of error in his calculations of the amount of GHB he had dropped into her wine. The half-life of the magnificent drug was just half an hour. It was a Friday evening, and she wouldn’t be discovered until there was nothing in her body left to detect. But by his estimate she should have been lucid an hour ago. Koller was confident the delay would not derail his plans any. The bees in his mason jar were doing just fine.

Spielmann could not sit up, although she was trying now. Koller had lashed his mark’s ankles and wrists to the posts of her mahogany bed frame using his beloved Velcro restraints. He had carefully inserted his little red ball into the woman’s mouth before she could scream. He found the confusion and fear exploding in her eyes intoxicating.

“Good evening, Doctor,” he began. “My name is Koller. Franz Koller. It’s a pleasure to meet such a distinguished physician.”

Spielmann’s attempt to talk, or scream, came out a muted, choked sob.

Once the security system was disabled, handling the lock on her front door was child’s play-for a very experienced, creative child. When he first started his research, while seated behind her in the vast hospital cafeteria, Koller slipped her key ring out from her purse, made clay impressions, and dropped it back. Later, using the molds, he created duplicates of the keys from flattened soda cans and used a tension wrench to insert and turn them. He had learned the trick years ago from a locksmith friend, who suggested that bringing a clay impression to a locksmith was asking for a report to the police.

The doctor kept up her struggle against the restraints, valiantly but without success. Koller, dressed in his surgical garb, placed a gloved hand on her shoulder to calm her. Clutched in his other hand was the bee-sting kit he had just taken from her purse. He made certain that she saw it.

“You know what this is, Dr. Spielmann,” Koller said in his calmest voice. “The kit, itself, isn’t at all frightening. This, however, would be worthy of a scream if you could.”

Koller leaned over the side of the bed and retrieved the mason jar containing eight large honeybees. Spielmann’s body shook violently. Beads of sweat formed on her brow then dripped into her eyes. Each bee had a white thread tied neatly around its body. The threads dangled down the outside of the mason jar like octopus arms. Holding one thread, Koller opened the top of the jar, extracting one of the bees, then quickly sealed the jar before any others could escape.

“Have you ever seen a man fly a bee before, Dr. Spielmann? A funny little sight, isn’t it. It’s blessedly simple to do, actually. You place the bee inside a film canister, then freeze it for about ten minutes. The cold knocks the little fella unconscious, allowing its keeper-me-to tie the string around its little body without getting stung myself, though that would only hurt me.

“You, of course, are a different story altogether.

“Without your EpiPen, this guy would kill you.”

Spielmann thrashed against her restraints. Koller pulled down on the thread, guiding the buzzing bee hovering above his head onto the exposed skin of Spielmann’s right arm.

“I wouldn’t struggle much if I were you,” Koller said. “Might piss him off. And you’d best not scream when I take out that ball. Bad things might happen.”

As usual, Koller was careful to avoid her teeth as he plucked the red ball from her mouth. The bee, perhaps tired from its brief flight, walked in a circle on her arm. Abigail’s respirations were labored, close to hyperventilation.

“What… what… do you want?” she breathed.

“I want to talk a moment,” Koller said. “But if you try to scream, the ball goes in, followed by the stinger. Understand?”

“Yes,” she whispered hoarsely. “What do you want from me? I have money.”

“I’m well paid to be here,” Koller said. “But thank you anyway. First, I want you to know just how truly impressed I am with you and your accomplishments, Doctor.”

Abigail stammered, “I… I don’t understand…”

“You’ve pioneered techniques for robotic surgery that I am certain will be a lasting legacy. You’re going to be well remembered, Dr. Spielmann. I do hope you know that.”

The bee floated off her arm and danced erratically above her head before coming to a rest on the comforter. Spielmann traced the insect’s path with frightened eyes as it slowly crawled up her shoulder, inching across her neck then onto her face before taking flight again.

“Please… stop…”

“See, we have a lot in common, you and I,” Koller continued. “Our life is our work. Neither of us has any children. We’ve never bothered with marriage. No, our passion has been our careers and you’ve done a marvelous job with yours.”

“I’ll pay you to leave,” Abigail sobbed. Her tears rolled unabated down her cheeks.

“Our work, I guess, is our children. Our labor of love. Isn’t it, Doctor? But have you ever stopped to truly appreciate each moment of your day? I mean, when you’re cutting out those nasty cardiac tumors with that robot of yours, have you ever asked yourself if this could be the last surgery you’ll perform? If you knew it was to be the last, would you treat that procedure any different from the others? Savor each cut and stitch in a way you never had before?”

“Why are you asking me this?” Her voice was weak and shaky. The bee was airborne again. This time it landed on Koller, who didn’t even flinch.

“You see, I think about these things,” Koller continued. “I constantly ask myself, is this the last time I’ll ever do this again? Most parents can’t remember the last night they carried their tired little munchkin off to beddy-bye, but sure as sunrise and sunset, that night does come. It’s a shame when such a monumental moment passes without proper acknowledgment. I won’t let that happen to me.”

Koller slipped the ball back into her mouth. Using the thread, he guided the bee onto Spielmann’s arm, then pinned the insect onto her flesh with his thumb and index finger. Despite trying to be gentle, he used too much force and crushed the bee before it could sting.

“Dang,” Koller said, wiping up the small mess with a tissue. “Good thing I have some backups with me.”

Koller retrieved a second bee from the mason jar, marveling a moment at the artful way the thread traced the bee’s erratic flight path.

“I mean, I have killed surgeons before-a couple of times, in fact. But I don’t know if I’m ever going to be hired to kill another surgeon again,” Koller continued. “Think about it, that would mean you would be the last surgeon I ever kill.” The assassin paused a moment, clearly deep in thought. “I have to really, really embrace this moment. You can’t record these feelings, the smell of your apartment, your fear. But if you believe it might be the very last time you do something, it’s best to approach it with deserved reverence. You might not be the last surgeon, but then again, you might.”

Koller pulled the string tied around the honeybee until the insect came to a rest on the fleshy anterior triangle of Spielmann’s neck. She tried frantically to flick it away by tilting her head and flexing the muscles of her neck, but Koller held the bee in place. He agitated it. The wings were a blur of motion. Its legs marched helplessly as it tried to free itself.

Then, probably fearing for its life, the honeybee stung.

To escape, it tore away part of its abdomen, leaving behind its stinger and deadly venom sac, where the medical examiner would certainly find it. Koller knew the muscles of the sting apparatus continued to pulsate, injecting more venom deeper into Spielmann’s skin.