Marshall's auxiliary log entries for December 12–15 describe the keepers in states of visible emotional distress — praying together, Ducat weeping, McArthur shaking. These entries have been cited as evidence of psychological breakdown, interpersonal conflict, and even supernatural dread. But the log entries also contain a specific meteorological claim that, if true, actually strengthens the rogue wave theory rather than undermining it. What is that claim, and why does it matter?