"So do I!" added Freddie.
Nan and Bert looked about them. They were still in the underground station, and they could see trains coming in and going out, and crowds of people hurrying to and fro. But they could not see their father nor the place where he had told them to wait. At last Nan said:
"Bert, I don't know where we are! We're lost!"
CHAPTER XI
FREDDIE AND THE TURTLE
Bert Bobbsey looked all around the big underground subway station before he answered Nan. Then he took off his cap to scratch his head, as he often did while thinking. Next he looked down at Flossie and Freddie.
If he thought he was going to find the two little twins in a fright at what Nan had said about being lost, Bert was mistaken. The two flaxen-haired tots were looking down the long platform, into the gloom of the long tunnel of the subway.
"Aren't they funny, Freddie?" asked Flossie.
"Yep, awfully funny," was Freddie's answer.