continuum-instability

In this chapter, Mr. Dunworthy reveals to Polly that a seemingly minor incident during a time travel mission to World War Two—the collision with a Wren—may have caused a catastrophic alteration in the timeline, leading to the continuum's instability. Despite uncertainty about the exact consequences of his actions, he acknowledges the cumulative impact of many small changes over forty years, culminating in a tipping point that threatens history itself. The chapter ends with Mr. Dunworthy falling ill, symbolizing the personal toll of their temporal disruptions and the looming crisis.