[CHAPTER I.]
DEPARTURE FROM VIENNA.—FRANK'S LETTER.—A FAREWELL PROMENADE.—FROM VIENNA TO CRACOW.—THE GREAT SALT-MINE OF WIELICZKA, AND WHAT WAS SEEN THERE.—CHURCHES AND PALACES UNDERGROUND.—VOYAGE ON A SUBTERRANEAN LAKE.
"Here are the passports at last."
"Are you sure they are quite in order for our journey?"
"Yes, entirely so," was the reply; "the Secretary of Legation examined them carefully, and said we should have no trouble at the frontier."
FRED'S REMINDER.
"Well, then," a cheery voice responded, "we have nothing more to do until the departure of the train. Five minutes will complete the packing of our baggage, and the hotel bill is all settled. I am going for a walk through the Graben, and will be back in an hour."