"Where are we?" Jimmie asked.
"We're here!" laughed Jack.
"This is all new land to me," Ned replied.
Frank clattered down the staircase into the bowels of the submarine and brought out a map, which he spread out on the floor of the conning tower. It was pretty crowded there, with the three boys grouped about it, for the hatch was still open.
"We've been going north all the time?" he asked.
"Just a trifle east of north," Ned answered.
"And we've been running at the rate of about twenty miles an hour for 24 hours," continued Frank. "Figure that out."
"Not far from 480 miles," cried Jimmie.
"Then measure," Frank continued. "This map shows about 400 miles to the inch. Now, where would a run of 480 miles bring us?"
"To the coast of Kwang Tung," suggested the little fellow.