The party settled down to their regular life, which though very monotonous soon had an element of excitement and danger introduced that never passed away in entirety. This was the threatened disruption of the pack, which, seemingly without cause, would change its form and position with such suddenness and violence as to endanger the safety of the ship. On November 13, 1879, without warning, the pack separated on a line with the ship's keel, the port snow-wall being carried with the pack one hundred and fifty feet away, leaving open water, that fortunately froze over before other violent changes took place. De Long writes: "This steady strain is fearful; seemingly we are not secure for a moment.... Living over a powder-mill, waiting for an explosion, would be a similar mode of existence.... I sleep with my clothes on, and start up anxiously at every crack ... of the ship's frame." Almost by intervention of Providence, as it seemed, the Jeannette escaped destruction from these violent disruptions, which, except that of January 19, 1880, left her, during the first winter, comparatively unharmed. On that day, with terrible groaning and grinding, the main pack was fearfully agitated; no large openings were seen and the ice acted as though its entire periphery was subjected to steady and irresistible pressure, which being toward the centre caused the whole surface to buckle up irregularly. Enormous pieces of ice piling up under the stern of the Jeannette brought a tremendous longitudinal pressure on the ship and broke her fore-foot, which caused a serious leak. It was only through the indomitable energy and great professional skill of Melville that the leak was got under control, and later cared for, without taxing greatly their precious stock of fuel.