casting deep shadows; there was no breath of wind; and the trees in the formal gardens by the sea-front watched them silently as they passed along. To his aunt's occasional remarks Shorthouse made no reply, realising that she was simply surrounding herself with mental buffers—saying ordinary things to prevent herself thinking of extra-ordinary things. Few windows showed lights, and from scarcely a single chimney came smoke or sparks. Shorthouse had already begun to notice everything, even the smallest details. Presently they stopped at the street corner and looked up at the name on the side of the house full in the moonlight, and with one accord, but without remark, turned into the square and crossed over to the side of it that lay in shadow.
"The number of the house is thirteen," whispered a voice at his side; and neither of them made the obvious reference, but passed across the broad sheet of moonlight and began to march up the pavement in silence.
It was about half-way up the square that Shorthouse felt an arm slipped quietly but significantly into his own, and knew then that their adventure had begun in earnest, and that his companion was already yielding imperceptibly
