The new station had just been built in Boston, and it seemed a great enterprise to Gilbert to be threading his way through the enormous spaces, getting his information by his own wits and not asking questions like a stupid schoolboy. Like all children of naval officers, the Careys had travelled ever since their birth; still, this was Gilbert's first journey alone, and nobody was ever more conscious of the situation, nor more anxious to carry it off effectively.

He entered the car, opened his bag, took out his travelling cap and his copy of "Ben Hur," then threw the bag in a lordly way into the brass rack above the seat. He opened his book, but immediately became interested in a young couple just in front of him. They were carefully dressed, even to details of hats and gloves, and they had an unmistakable air of wedding journey about them that interested the curious boy.

Presently the conductor came in. Pausing in front of the groom he said, "Tickets, please"; then: "You're on the wrong train!" "Wrong train? Of course I'm not on the wrong train! You must be mistaken! The ticket agent told me to take this train."

"Can't help that, sir, this train don't go to Lawrence."

"It's very curious. I asked the brakeman, and two porters. Ain't this the 3.05?"

"This is the 3.05."

"Where does it go, then?"

"Goes to Lowell. Lowell the first stop."

"But I don't want to go to Lowell!"

"What's the matter with Lowell? It's a good place all right!"

"But I have an appointment in Lawrence at four o'clock."

"I'm dretful sorry, but you'll have to keep it in Lowell, I guess!--Tickets, please!" this to a pretty girl on the opposite side from Gilbert, a pink and white, unsophisticated maiden, very much interested in the woes of the bride and groom and entirely sympathetic with the groom's helpless wrath.

"On the wrong train, Miss!" said the conductor.

"On the wrong train?" She spoke in a tone of anguish, getting up and catching her valise frantically. "It _can't_ be the wrong train! Isn't it the White Mountain train?"

"Yes, Miss, but it don't go to North Conway; it goes to Fabyan's."

"But my father _put_ me on this train and everybody _said_ it was the White Mountain train!"

"So it is, Miss, but if you wanted to stop at North Conway you'd ought to have taken the 3.55, platform 8."

"Put me off, then, please, and let me wait for the 3.55."

"Can't do it, Miss; this is an express train; only stops at Lowell, where this gentleman is going!"

(Here the conductor gave a sportive wink at the bridegroom who had an appointment in Lawrence.)

The pretty girl burst into a flood of tears and turned her face despairingly to the window, while the bride talked to the groom excitedly about what they ought to have done and what they would have done had she been consulted.

Gilbert could hardly conceal his enjoyment of the situation, and indeed everybody within hearing--that is, anybody who chanced to be on the right train--looked at the bride and groom and the pretty girl, and tittered audibly.

"Why don't people make inquiries?" thought Gilbert superciliously. "Perhaps they have never been anywhere before, but even that's no excuse."

He handed his ticket to the conductor with a broad smile, saying in an undertone, "What kind of passengers are we carrying this afternoon?"

"The usual kind, I guess!--You're on the wrong train, sonny!"

Gilbert almost leaped into the air, and committed himself by making a motion to reach down his valise.

"I, on the wrong train?" he asked haughtily. "That _can't_ be so; the ticket agent told me the 3.05 was the only fast train to Greentown!"

"Mebbe he thought you said Greenville; this train goes to Greenville, if that'll do you! Folks ain't used to the new station yet, and the ticket agents are all bran' new too,--guess you got hold of a tenderfoot!"

"But Greenville will _not_ 'do' for me," exclaimed Gilbert. "I want to go to _Greentown_."

"Well, get off at Lowell, the first stop,--you'll know when you come to it because this gentleman that wanted to go to Lawrence will get off there, and this young lady that was intendin' to go to North Conway. There'll be four of you; jest a nice party."

Gilbert choked with wrath as he saw the mirth of the other passengers.

"What train shall I be able to take to Greentown," he managed to call after the conductor.

"Don't know, sonny! Ask the ticket agent in the Lowell deepot; he's an old hand and he'll know!"

Gilbert's pride was terribly wounded, but his spirits rose a little later when he found that he would only have to wait twenty minutes in the Lowell station before a slow train for Greentown would pick him up, and that he should still reach his destination before bedtime, and need never disclose his stupidity.

After all, this proved to be his only error, for everything moved smoothly from that moment, and he was as prudent and successful an ambassador as Mother Carey could have chosen. He found the Colonel, whose name was not Foster, by the way, but Wheeler; and the Colonel would not allow him to go to the Mansion House, Beulah's one small hotel, but insisted that he should be his guest. That evening he heard from the Colonel the history of the yellow house, and the next morning the Colonel drove him to the store of the man who had charge of it during the owner's absence in Europe, after which Gilbert was conducted in due form to the premises for a critical examination.

The Yellow House, as Garden Fore-and-Aft seemed destined to be chiefly called, was indeed the only house of that color for ten miles square. It had belonged to the various branches of a certain family of Hamiltons for fifty years or more, but in course of time, when it fell into the hands of the Lemuel Hamiltons, it had no sort of relation to their mode of existence. One summer, a year or two before the Careys had seen it, the sons and daughters had come on from Boston and begged their father to let them put it in such order that they could take house parties of young people there for the week end. Mr. Hamilton indulgently allowed them a certain amount to be expended as they wished, and with the help of a local carpenter, they succeeded in doing several things to their own complete satisfaction, though it could not be said that they added to the value of the property. The house they regarded merely as a camping-out place, and after they had painted some bedroom floors, set up some cots, bought a kitchen stove and some pine tables and chairs, they regarded that part of the difficulty as solved; expending the rest of the money in turning the dilapidated barn into a place where they could hold high revels of various innocent sorts. The two freshman sons, two boarding-school daughters, and a married sister barely old enough to chaperon her own baby, brought parties of gay young friends with them several weeks in succession. These excursions were a great delight to the villagers, who thus enjoyed all the pleasures and excitements of a circus with none of its attendant expenses. They were of short duration, however, for Lemuel Hamilton was appointed consul to a foreign port and took his wife and daughters with him. The married sister died, and in course of time one of the sons went to China to learn tea-planting and the other established himself on a ranch in Texas. Thus the Lemuel Hamiltons were scattered far and wide, and as the Yellow House ............