Then he swung himself up to the roof of the dormer window and proceeded to haul himself by the rope up the steep incline, helping himself as much as possible with his feet and knees. He was heartily glad when he gained the ridge, and had thus accomplished the most dangerous part of the work. He was able now to fix the grapnel firmly, and sitting astride of the roof, he called down that he was ready. It was easier work for Albert to follow him. Not only was the latter certain that the grapnel was safely fixed, but Edgar, pulling upon the rope, was enabled to give him a good deal of assistance. In two or three minutes Hal Carter joined them.