Part 36 of a series reassessing the documentary record behind the 1933 Magenta narrative. TL;DR The sightings and interceptions are documented; one continuously tracked craft is not. Controllers reported unusual radar returns on two July 1952 weekends, and pilots reported lights. The record also includes negative intercepts, ground-light candidates and missing pilot reports. The atmospheric explanation has substantial but contested support. CAA investigators plotted similar returns and tested...