a move on. Then go back to the office and wait for me.â
Burke saluted and disappeared.
Heath then addressed one of the two men who had been inspecting the grilles of the front windows.
âHow about that ironwork, Snitkin?â
âNo chance, Sergeant,â was the answer. âStrong as a jailâboth of âem. Nobody got in through those windows.â
âVery good,â Heath told him. âNow, you two fellows chase along with Burke.â
When they had gone the dapper man in the blue serge suit and derby, whose sphere of activity had seemed to be the fireplace, laid two cigarette butts on the table.
âI found these under the gas-logs, Sergeant,â he explained unenthusiastically. âNot much; but thereâs nothing else laying around.â
âAll right, Emery.â Heath gave the butts a disgruntled look. âYou neednât wait, either. Iâll see you at the office later.â
Hagedorn came ponderously forward.
âI guess Iâll be getting along, too,â he rumbled. âBut Iâm going to keep this bullet awhile. Itâs got some peculiar rifling marks on it. You donât want it specially, do you, Sergeant?â
Heath smiled tolerantly.
âWhatâll I do with it, Captain? You keep it. But donât you dare lose it.â
âI wonât lose it,â Hagedorn assured him, with stodgy seriousness; and, without so much as a glance at eitherthe District Attorney or the Chief Inspector, he waddled from the room with a slightly rolling movement which suggested that of some huge amphibious mammal.
Vance, who was standing beside me near the door, turned and followed Hagedorn into the hall. The two stood talking in low tones for several minutes. Vance appeared to be asking questions, and although I was not close enough to hear the conversation, I caught several words and phrasesââtrajectory,â âmuzzle velocity,â âangle of fire,â âimpetus,â âimpact,â âdeflection,â and the likeâand wondered what on earth had prompted this strange interrogation.
As Vance was thanking Hagedorn for his information Inspector OâBrien entered the hall.
âLearning fast?â he asked, smiling patronizingly at Vance. Then, without waiting for a reply: âCome along, Captain; Iâll drive you down town.â
Markham heard him.
âHave you got room for Dinwiddie, too, Inspector?â
âPlenty, Mr. Markham.â
The three of them went out.
Vance and I were now left alone in the room with Heath and the District Attorney, and, as if by common impulse, we all settled ourselves in chairs, Vance taking one near the dining-room door directly facing the chair in which Benson had been murdered.
I had been keenly interested in Vanceâs manner and actions from the moment of his arrival at the house. When he had first entered the room he had adjusted his monocle carefullyâan act which, despite his air of passivity, I recognised as an indication of interest. When his mind was alert and he wished to take on external impressions quickly, he invariably brought out his monocle. He could see adequately enough without it, and his use of it, I had observed, was largely the result of an intellectual dictate. The added clarity of vision it gave him seemed subtly to affect his clarity of mind. 1
At first he had looked over the room incuriously and watched the proceedings with bored apathy; but duringHeathâs brief questioning of his subordinates, an expression of cynical amusement had appeared in his face. Following a few general queries to Assistant District Attorney Dinwiddie, he had sauntered, with apparent aimlessness, about the room, looking at the various articles and occasionally shifting his gaze back and forth between different pieces of furniture. At length he had stooped down and inspected the mark made by the bullet on the wainscot; and once he had gone to the