He got down, after securing the panel again, and started to tell Harry. But after a few paces his legs literally refused to carry him in that direction. The secret was his by right of trove, he must make the first joyful exploration alone. Again he turned the knob, and from his chair vaulted easily into the panel. The passage led right and left into darkness, and he would have jumped down again to get matches, when he saw in a little recess in the wall a candle with matches by it. This was eminently convenient, and due no doubt to Mr. Francis's thoughtfulness, and after lighting up he pulled the panel ajar, and, after satisfying himself that the catch was of the simplest kind, latched it back into its place.

Two thoughts were in his mind as he waited for the red wick of the candle to grow black again: the one, the further tracking of the game he had definitely roused during the night; the other, sheer childish pleasure in a story of adventure come true. Alas for the stockbroker! he cared no more for the shillings; there was a dark passage in the wall, and the imperishable child within him trembled and smiled; Mr. Francis, the man felt sure, had used this passage last night. Here was double cause for excitement and joy. The candle burned more bravely, and two ways were open. Like all right-handed folk, his impulse was to turn to the left, and, obeying it, he travelled six yards or so of a level, rough-floored passage. On his right ran the courses of bricks in the main wall, a little dark and mildewy, on his left the panelling of the hall. A turn at right angles, at the corner no doubt of the hall, disclosed a flight of wooden steps leading downward. Here the stockbroker awoke; he greedily counted them, and ten shillings were his. But the stockbroker, it seemed, was a gentleman of second-rate vitality; he awoke from his torpor but to count, and slumbered again, leaving the child and the hunter to go their way.

At the bottom of these steps Geoffrey paused a moment to recollect his bearings. He had entered the secret way on the short side of the hall; the steps therefore were on the long side of it, and on the garden side of the house. But inasmuch as the passage, when he entered it, was some six feet above the ground level of the hall, these ten downward steps would bring him back to ground level again. He was therefore walking in the outer wall of the hall on a level with the floor. This clear, he went slowly on.

Suddenly he was confronted by a blank brick wall, straight in front. But on the right hand the regular courses of the brick were interrupted by a panelled wooden oblong, some five feet high; beyond this, up to the wall that ended the passage, the courses went on again. In the middle of it was a round wooden handle; straight below it on the floor ran two flanged metal lines. Laying hold of this handle, he pulled at it, and on each side of the wooden panel opened a jagged edge of light, irregular and full of angles. It drew inward some three feet till it reached the end of the metal lines, running smoothly but with a sense of great weight. Sunlight poured in, and Geoffrey stepped on to the lawn outside and regarded his discovery. Indeed, it had been a cunning brain and hand that had devised this. The house wall outside here ran in courses of small brick, and the opening of this door drew these inward irregularly. The top of the door, for instance, was four bricks in length, but the second row of bricks detached numbered six; below that again was a course of four withdrawn, then one of five, then one of six again. The joining was fitted with extreme accuracy; here the interspace of mortar between the bricks would move with the withdrawn piece of wall, here it would remain on the wall in place; detection of the line of the door to one who did not know where to look, even to one who did, would be nearly impossible.

Regarding it more closely, another thing struck him: halfway down the withdrawn portion was a broken edge of brick, and taking hold of this he drew the door back into its place again. Seen thus, as part of the whole wall, detection appeared impossible; there was no line to follow, and, though he had closed it but a moment before, he could not trace the junctures. The thing fitted as well as a jaw full of good teeth.

But he surveyed it only for a moment; then with an effort pushing it back again, he re-entered, closed it behind him, and took up his candle to explore the branch of the passage that led to the right of the picture. Again he mounted the ten steps, again came opposite the hinged panel, and passed on. Ten similar steps again led down to the ground level of the hall, and at the bottom of these the passage ended in a wooden panel, by the side of which was a latch exactly resembling that by which the picture-panel was shut and opened. He turned it, and the hinged woodwork opened, giving on the short space between the stairs where he had watched last night and the door into the hall round which Mr. Francis's face had first appeared to him when he awoke from his doze. This, then, explained all; it was here, not from behind the picture, that the old man had entered; from here, seeing a light in the hall, he had peeped round the corner.

Geoffrey stepped out into the corridor, and examined the hinged panel from outside; it was in deep shadow, but round it ran bossed circles similar to those in that which held the portrait over the mantelpiece; the second on the right in the same manner raised and lowered the latch.

He blew out the candle, leaving it on the bottom step of the secret way, closed the door, and went to the smoking room. Harry was still at work, ill at ease with figures.

"And seven," he observed truculently, as Geoffrey entered.