The Last Strand. The Strand Protocol, #4

The trials are over. The convictions are in. The protocol is in peer review. And the man who architected the entire operation-a former government official named Aldous Pren-is sitting just outside the edge of everything the investigation has reached so far. Dr. Wren Calloway isn't finished. With Declan at her side and a three-hundred-step preclinical checklist standing between the science and its first human trial, Wren returns to the work she was always meant to do.
She navigates NIH advisory meetings, access equity frameworks, peer review revision rounds, and the slow machinery of legitimate science-while Pren circles, adapts, and finally calls her directly with an offer she never considers for a second. The counter-agent reaches seven survivors. The evidence closes in on the man who started it all. And Wren, step by careful step, finishes what she came to do.
The Last Strand is the conclusion of The Strand Protocol series-a story about a scientist who held on to both the science and her integrity when the world tried to separate them.