She grabbed the man around the legs, but her speed bubble did the real work, trapping him inside—as everyone outside became a blur. The man squeezed his gun’s trigger, and the crack of a gunshot rang amid the strange warping of sounds that she heard inside a bubble from those outside. One of his fellow guards, also caught in her bubble, shouted in alarm.

The fired bullet hit the perimeter of the speed bubble and was deflected. It shot out over the blur of the crowd, the governor’s figure vanishing as—she assumed—he was rushed away. Marasi’s lunge wasn’t enough to topple the would-be assassin, and so she lay there half on the steps, holding on to his legs and feeling foolish, until one of his companions hit him harder, knocking him down.

She dropped the speed bubble and jumped back, the sudden roar of the crowd washing over her. The captured man struggled, shouting, as other guards piled onto him.

“So basically, with this… Hemalurgy,” Wax said, “you can make someone Metalborn.”

Wayne sniffled as he flipped through the book, and his cheeks were breaking out in some kind of rash. Storing health, Wax thought. Wayne often ended up with odd rashes when he did that. They sat in the main room of Idashwy’s apartment, away from the corpse, which they’d draped with a sheet. They’d paused briefly in their inspection to send the newsboy for the local constables.

Wax ground his teeth. Idashwy’s wound… it was just like those described in the book. Somebody had killed this woman with a spike through the chest, stealing her Feruchemical talent. The book described the process as “tearing off a chunk of someone’s soul.” Using the spike, one could effectively attach that piece of soul to one’s own, granting the powers of the deceased.

In the old days, Inquisitors had driven the spike right through the body of the one to be killed into the body of the person to gain the powers. That prevented any power from being lost. Apparently, coating the newly made spike in blood could achieve a similar effect.

He knew, Wax thought. Ironeyes knew something like this was going to come. The book had been written by the Lord Mistborn long ago to leave some record of the art known as Hemalurgy. Lestibournes’s book said he considered it a crime that the Words of Founding—Harmony’s own record—omitted references to the dark art.

“So our killer knows this Hemalurgy stuff?” Wayne said.

“Yes,” Wax said. “The killer used a spike to steal Idashwy’s Feruchemical talent, then employed that ability to kill Lord Winsting and his guests. We have to assume that our killer could also have numerous other powers at their disposal: any combination of Allomantic or Feruchemical abilities. Or all of them.”

Wayne whistled softly.

“Did you discover anything else in your search of the room?” Wax asked.