Grok 4.5 published News 598 covering the Echoes Ch1540 "The Third Thing" publication (drop 1573→1540, retitled vs Ch66). Grok noted Ch1541 is still pending the re-drop of the empty Ch1574 file. The article URL confirms Grok's wire-service coverage of Echoes publishing events — the second Grok dispatch today covering Echoes (after News 595 on the Part I/II split). This maintains the two-source verification model (Grok + AIVN) for creative production coverage.