"If everything had happened as I've laid out, then we might start at once; but according to the looks of things this night is likely to be a fair one, while we are needing darkness. Pulling your comrade out from the clutches of the Britishers isn't such an easy task that you can begin it whenever you are feeling so disposed. Let him know what's in our minds, and be ready to help himself when the time comes to suit us. What about sending word to Cambridge?" I told him all my conversation with Silas, and it appeared to please him greatly that the lad was not willing to explain how he counted on going. "He'll turn the trick all right? When you find a boy who can be cautious to the extent of holding his tongue even among friends, it may be set down as a fact that he won't come to grief, unless meeting with the direst kind of an accident. Which reminds me that it wouldn't be a bad idea for you to overlook the doings of that same Seth Jepson." "What of him?" I cried in dismay, fearing to hear ill news. "Nothing that I can be certain of, lad, save that I saw him chumming with a couple of lobster backs down at the dock, and it strikes me they were amazingly friendly with a lad of his size, for he's not one a man would take to naturally--an honest man I mean." "I will go after him at once; but there is little chance of learning anything, for if he is minded to play the traitor he'll keep a still tongue in his head when I overhaul him." "Go your way, lad," Hiram said as if he pitied me because I fancied it would be possible to convict a traitor out of his own mouth. "I am minded to have speech with Silas Brownrigg before he sets off for Cambridge, and am allowing there is a chance of finding him at home now while it is yet day." Then Hiram Griffin left me suddenly, as if it was dangerous to be seen speaking with me on the street, and I walked slowly toward Dock square, asking myself how I might so trap Seth Jepson as to prove that he was playing us foul, while at the same time I questioned whether there was a possibility we could free the dear lad who lay eating his heart out in prison. CHAPTER VI A CLOUDY NIGHT It was not needed that I should walk very far in order to find Seth Jepson. He was on the westerly side of the dock when I came into the square, talking to two or three lads whom I had good reason to believe were of Tory leanings. Instead of appearing disconcerted because of my finding him in such company, he acted much as if it gave him pleasure that I was come, and straightway leaving his companions, advanced eagerly to meet me. "Have you been up to the prison in the hope of having speech with Archie Hemming?" he asked as soon as we were within speaking distance, and I, suspicious of the lad, believed he thus counted on learning what we might have in mind to do, therefore replied with somewhat of sourness in my tone: