CHAPTER XIII .-- The Big Polar Bear.
"Your father!" cried Captain Sumner.
"Yes, my father," repeated Bob, in high excitement.

"What shall we do ?" He felt like rushing forward, but the captain restrained him.
"We can do nothing against such a force of men," he said.

"Wait--or--" He hesitated.
"What ?" "You or I might go back to the _Dart_ for help.

Every man on board can come heavily armed.

When these people see our number they may be willing to talk reasonably to us." "That's so, but I hate to leave," returned Bob.