He was almost sure that whoever owned the wharf and the boats knew exactly what was going on and had been paid to cooperate. It seemed to him unlikely that the pair in the rowboat would have risked bringing Hansen there otherwise. But he couldn't be completely sure, and getting in touch with Center Street fast was very urgent. He'd passed two Manhattan-bound police cars on the Queen's side of the bridge and a cop on a motorcycle. But his decision not to flash a warning signal to the car ahead by enlisting police aid had hardened during the drive and he'd decided not to. Now he regretted having taken so much upon himself. A police escort would have swiftly overtaken the kidnappers and rescued Hansen. Any chance of finding out what had happened to Gerstle or trapping the murderer would have vanished into thin air, in all likelihood, for the two kidnappers couldn't be depended upon to name him. And they could still have silenced Hansen with a bullet, figuring maybe that a good mouthpiece, hired by the killer, might be able to turn it into an act of self-defense before a rigged jury. There was no chance too desperate and even suicidal for trapped gunmen to take, if you hardly gave them time to reason. He'd done a foolish thing, however, and he realized it now. Only a quick phone call from the boathouse could set it right again. With luck, a dozen police cars could close in on the wharf in fifteen or twenty minutes. And it wouldn't take long for the police to get to the cruiser. If it started moving, the Coast Guard could be alerted. Fenton made up his mind quickly. He had a gun, and even if there were two or three men in the boathouse the odds would be in his favor. He was reproaching himself so bitterly now that he decided on the spot he'd turn in his badge and make a full confession if anything went wrong and Hansen was slugged and dropped over the rail of the cruiser before he could be rescued. He emerged from the cluster of trees and walked straight toward the boathouse, his hand on the butt of his gun, in instant readiness for any contingency. He walked to the door, opened it and stepped inside--and stood blinking in amazement. The boathouse wasn't deserted. But it had only one occupant--a frail little old man of about seventy-five, who sat dozing in a chair by a dust-darkened window. Fenton cast one quick glance at the old man and then his eyes swept the interior of the boathouse and came to rest on a phone booth behind a waist-high coil of rope and six oars stacked crosswise. He lost no time in encircling the rope and oars and wedging himself in the phone booth. He deposited a dime and waited, with sweating palms, for the humming sound to start before dialing. There was no humming sound. He jerked the receiver hook up and down, but nothing happened. In desperation he dialed the operator. Still nothing. Cursing softly, he emerged from the booth and shook the old man awake.