Steve went with this party and presently found himself with Kelly and another man speeding toward the building near the end of the row which he had seen the spy enter. From a broken sentence or two he learned that the system of search lights had just been installed, but not formally received from the contractor, and hence had not been turned on. That explained the first darkness of the yard. But there was little time for conversation and there was to be even less. For as they dashed up to the front of the building, the windows which before had been mere patches of blackness were sharply outlined now with the lurid, flickering glow of fire.