diff --git a/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md b/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md
index 1ea0d2d1..ddc6e6e4 100644
--- a/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md
+++ b/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md
@@ -99,3 +99,6 @@ names the principle that settles it, and is cited as "design 47 G A-n".
   rest goes with the state table.
 - **A-25** (§518, A-21; principle 3) A session put loses nothing a one-call put keeps: its first chunk carries the put's
   `description`.
+- **A-26** (§687, §689, A-22; principle 7) A part raises no follower's finding itself: every follower is adopted through
+  its reader (`Adopt`), and the reader raises and clears the follower's four findings through the module's writer, so
+  the pipeline runner, the indexer and the assigner build none of their own.