Daniel walked back to Gresham's College and worked all night with Hooke. Hooke stayed below, gazing up at various stars, and Daniel remained on the roof, looking at a nova that was flaring in the west end of London: a Mobb of people with torches, milling around St. James's Fields and discharging the occasional musket. Later, he learned that they had attacked Comstock House, supposedly because they were furious about the cannon that had burst.