“Sherlock Holmes took his bottle from the corner of the mantelpiece and his hypodermic syringe from itsneat morocco case. With his long, white, nervous fingers he adjusted the delicate needle, and rolled back hisleft shirt-cuff. For some little time his eyes rested thoughtfully upon the sinewy forearm and wrist alldotted and scarred with innumerable puncture-marks. Finally he thrust the sharp point home, pressed downthe tiny piston, and sank back into the velvet-lined arm-chair with a long sigh of satisfaction.”Sir ArthurConan Doyle’s immortal workThe Sign of the Four in its original language…