Regan and I stared at the picture, committing Agent Chris’s sharp nose, wide-set eyes, and broad forehead to memory. I was so focused that I about jumped out of my skin when someone brushed something across my cheek. I turned to see one of the technicians with a makeup palette of blacks, grays, and reds as he turned to Regan and gave her the same treatment. Within minutes, we both looked like survivors of a fire, with soot-covered faces and a few bloody scrapes for good measure.

“Are they ready?” Callaway asked as he hurried over.

“Yes,” said the tech as he stood back to take us in. He put one last swipe across my nose, gave my shirtsleeve a good rip to match the one he’d put in the hem of Regan’s dress, and then hurried over to Tess and Eliana, who were still getting dressed in what appeared to be the uniforms of Revolutionary War soldiers.

“No,” Regan said, so quietly only I could hear.

“Seriously,” I whispered. We’d made huge progress over the last few weeks, ever since I’d come up with our unique way of studying, but nothing could have prepared us for this.

“Remember,” Callaway said as he straightened a hem here and a collar there. “The Triangle Shirtwaist factory went up fast. You need to locate Agent Chris and get back as quickly as possible.”

“Can we switch with them?” I asked, jerking my head to where Corban and Blake were donning scuba gear. “We’ve only been training as a team for a few weeks.”

“That’s why I chose this one for you,” Callaway said. “Most of the people you meet inside the building won’t survive the fire, which means you have very little chance of accidentally changing history. The other missions require quite a bit more tact, finesse, and time. Besides, Regan is one of the best natural Butterfly spotters I’ve ever seen, so finding Agent Chris amid the chaos will hopefully be easiest for her. Now, follow me, please.”

With that, he turned and headed down a corridor on the far right that I’d never gone down before. The other teams filled in behind us, and I was a little relieved to see the same anxious expression on their faces that I’m sure was on my own. Regan was the only one who didn’t look nervous, but I’d been her partner long enough now to know that was a very convincing front and her insides were just as knotted as my own. Feeling resolved, I gritted my teeth and attempted to get in the right frame of mind for what was coming.