There is some debate as to what was the cause of Nancy Lincoln’s death – possibly tuberculosis or cancer but the general consensus is that she was a victim of milk sickness, which claimed thousands of lives in the nineteenth century. Although the actual cause can’t be pinpointed, one fact about Nancy’s death is well documented: her nine-year-old son, Abraham, the future president of the United States, helped his father build the woman’s coffin.

Milk sickness perplexed medical professionals for years, until it was finally discovered that the cause was tremetol, a highly toxic alcohol, which made its way into a cow’s milk after the animal had grazed on white snakeroot.

This plant is a nondescript, workaday herb that is hardly an aesthetic contribution to any garden, and accordingly Billy Haven didn’t enjoy the plant as a subject to sketch. But he loved its toxic properties.

When ingested, tremetol causes the victim to suffer excruciating abdominal pain, intense nausea and thirst, uncontrollable tremors and explosive vomiting.

Even a small dosage can result in death.

Head down, wearing a short-brimmed brown fedora – very hipster – and long black raincoat, Billy was making his way through Central Park, the west side. In his gloved hand was a briefcase. He was walking south and had made a serious trek from Harlem, but he wanted to avoid the CCTV cameras in the subway, even if his appearance was different from what the Underground Man had worn during the prior attacks.

Yes, tremetol was his weapon but the pending attack wouldn’t involve tattooing, so he’d left his machine back at his workshop near Canal. Today the circumstances dictated a different means of poisoning. But one that could be just as satisfying.

Billy was enjoying a good mood. Oh, with the earlier attacks, he’d felt satisfaction, sure, buzzing the poison into the victims, getting the bloodline just right, angling the careful serifs of the Old English letters.

A Billy Mod …

But that was good in the same way you felt good doing your job or completing chores around the house.

What he was about to do now was a whole different level of good.

Billy slipped out of the park and examined the streets carefully, uptown and cross, noting no one looking at him with suspicion. No police on patrol. He continued his journey south toward his target.

Yes, this attack would be different.

For one thing, there was no message to send. He’d simply deliver the tremetol. No scars, no tats, no mods.

Also, he was not interested in killing the victim. That death would ultimately be detrimental to the Modification. No, he was going to wield the poison to debilitate.