Spiny Norman

Factual error: When the captain sleeps in Darwin's house, first half 19th century, the bedroom appears to have electric light that uses a modern light switch. It's somewhat unlikely that this would be completely accidental, but since it serves no evident purpose for the story: mistake.

Spiny Norman

Continuity mistake: The sign at the start says 1837, but the Royal Society says "playing God since 1847." (Of course, a lot of time could have passed, or the sign could have been wrong, since it was handheld, not to mention the inscription; but there's no indication of, or reason for, either.)

Spiny Norman