Below the photo, a single line of text appeared.

My breath caught in my throat as I read the words.

“What is it?” Julian asked, his voice sharp.

I held out the screen so he could see the glowing image.

He squinted at the photo of my schematics under the dim dome light of the car.

“Is that your work?” he asked.

“Yes,” I said. “But it is an old draft from my final weeks at Bennett Urban Systems.”

“Those red lines indicate structural failure points in the retaining wall,” Julian noted.

“They do,” I said. “Because that draft was incomplete.”

“I corrected those calculations months ago, before I ever showed the plans to you.”

“So whoever sent this has obsolete data,” Julian said.

“Adrian has it,” I said.

“Or Serena,” I added, looking at the unknown number.

“They think they can use this to ruin the launch on Friday,” Julian said.

I locked the phone and slid it back into my pocket.

“Let them try,” I said. “The physical models are already locked in the exhibition hall.”

“And the city inspectors signed off on the final blueprints yesterday.”