"Halt or—!"

Another pistol shot!...

Glancing over shoulder, the hunted man caught a glimpse of uncouth shapes wriggling along a fence ridge several rods away. No more than the barest glimpse, it served: with a mighty heave and wriggle he breasted the lower platform, shifted a hand to the top of its railing, heaved himself up to a foothold, and swarmed up the iron ladder with an agility an ape might have envied.

But as he mounted, it grew momentarily more evident that the stage thunder manufactured by that wretched galvanised iron cylinder had, in fact, served him far from ill; reverberating from wall to wall within the hollow of the block, its dozen echoes diverted pursuit to as many quarters, luring the limbs of the law every way but the right one. Nobody, it appeared, was alert enough to espy that fugacious shadow on the fire-ladder. And in less than a brace of minutes P. Sybarite, at the top, was pulling himself gingerly over the lip of a stone coping.

Surmising that he had gained not the roof of the house but that of a two-story rear extension, he found himself in what seemed a small roof-garden, made private by awnings and Venetian blinds. Between his soles and the stone flooring he could feel the yielding texture of a grass mat, and he could not only dimly discern but also smell the perfume of green things in pots here and there. And his first step forward brought him into soft collision with a wicker basket-chair.

He paused and took thought in perturbation.

A most disappointing and deceptive sort of a house—inhabited, after all: its sombre and quiet aspect masking Heaven alone knew what pitfalls!...

Not a glint of light, not a sound....

When he moved again, it was with scrupulous caution.

Stealing softly on, the darkness seemed to thicken round him. He was sensible of suspense and qualms, of creeping flesh and an almost irresistible inclination to hold his breath. Uncanny business, this—penetrating unknown fastnesses of a dark and silent house at dead of night: a trespasser unable to surmise when the righteous householder, lurking on familiar ground and vigilant under arms, might not open fire....