Moving into positions. Preparations being made covertly through the night.
You take all the material you have compiled that you now have a working theory. Now take your material and set them in the order that makes the most sense. Putting the evidence in its perspective position, start writing in a story format using your research material, review it, look for whats missing and put it in a preliminary draft. Q & A your story. Comfy with it, then finalize your story.