our Balaklavan
rendezvous is only a few blocks off there," said the agent, pointing to
the east.

The car rolled up to the bridge and passed over the dark waters where
tugs were shunting car-floats into their docks and churning up white
foam with their propellers. Thousands of lights were reflected in the
black depths. In a moment the Harlem was behind them, and they were in
the borough of the Bronx. On they sped up Third Avenue.

The two boys were distracted. They wanted to see the sights, utterly
new to them, and they wanted to hear the discussion of their elders.
Willie, with that strange faculty of his for noting places and
locations, kept watching the street signs and trying to remember where
Third Avenue led to on the map.

"There are three places on Echo Bay where a motor-boat and a motor-car
can easily meet," said one of the secret service men. "At the north
side of the harbor entrance is a finger of land called Premium Point.
On the other shore is Huguenot Park. And an arm of the bay runs inland
all the way to the main street passing north through the town."

"Which place would they be most likely to select?" asked Captain Hardy.

"Well, they'd hardly try Premium Point because that is a private
estate, and they would have difficulty in getting to the water-front."

"Then that limits them to the two others."

"Exactly. And one is as easy to get to as the other."

Captain Hardy frowned. "What are we going to do?" he asked. "We might
pick the wrong place and miss them. And since there are several of
these spies in the boat, and they are desperate fellows, we'd never
dare divide our forces. What are we going to do?"

"Gee!" said Willie. "We just passed Two Hundredth Street. Some town,
eh, with two hundred numbered streets?"

The car rushed on. In silence the three men were considering how they
should meet the situation before them.

"If only we could get into touch with our motor-boat," said one of the
secret service men, "we could arrange a plan to cover every
possibility."

"We've got to find what this Revere Rendezvous is," insisted Captain
Hardy. "Can't you think of anything that would suggest such a name?"

The three men fell silent, pondering the matter. The car swept on.

"Hello!" said Willie. "We've left Third Avenue, but we're going so
fast now I can't make out the names on the sign-posts."

And indeed they were going. As they approached the edge of the city
limits, wher