us. The whole population of Mexico would follow us. So keep mum, everyone."
They all promised, and then they lent themselves to the task of getting things in shape for travel. Eradicate was a big help, and his cheerful good nature often lightened their toil.
At last all was in readiness, and with a caravan of six ox carts (for the balloon and its accessories took up much space) they started off, the Mexican drivers cracking their long whips, and singing their strange songs.
"Ho, for the interior!" cried Ned gaily.
"Yes, we're off into the unknown all right," added Tom grimly, "and there's no telling when we'll get back, if we ever will, should the head hunters get after us."
"Bless my collar and tie! Don't talk that way. It gives me the cold shivers!" protested Mr. Damon.
