The automaton stood in Kestrel's DUST CLOUD and filled a square with stone three rows away. The cloud blocked only sight lines passing through it; the square a line began or ended in was never asked. The FAQ is plain: no LOS spell may be cast by a wizard in a cloud, nor at one, though a spell upon oneself still works, and VISIONSTONE does not see through dust. From rev 19 the engine's sight and the view's — the targeting aid the client and the automaton both read — refuse a line with dust at either end. Older games keep their sight. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Jm2auWk6RP71CjaAb4FMoG