The opposing forces met about in the center of the space between the operating table and the door, while the nurse, ignored by both sides, shrank back against the wall, beyond the ghastly form on the table.

Nick had fully realized the odds that would be against them in the event of a clash. He had assumed, however, as he was not dealing with ordinary criminals, but with men who would probably be unarmed, and would have much to lose by an ill-advised attempt at resistance, that three well-armed and determined men could bluff nine into submission.

They had failed in that, and the odds were three to one, for Hoff had arrived a little after the others, armed with a big army revolver.

When the attack began, Hoff forged to the front, pushing the young surgeons to left and right. As a result, he, Doctor Grantley, and the latter’s assistant, all armed, were directly opposed to Nick, Patsy, and Doctor Cooke, while the six young surgeons, taking advantage of the situation, wormed their way past, one by one, and got in the rear of the invading trio.

Things began to look far from promising.

Hoff was bigger than any of those on the other side, and he advanced to the fray with a bellow which suggested that he felt himself in his element.

Doctor Grantley was transformed. His face was distorted with murderous hate, and there was a tigerish quickness about his movements which was unexpected in a man of his age and occupation.

Even Doctor Siebold proved to be a surprise. His agility and reckless ferocity made up for any physical deficiencies, and he fought with a whole-hearted devotion that was worthy of a better cause.

Desperation nerved them all, in fact, to a degree which would have been impossible under other circumstances. Their resistance was utterly unreasonable, since they could hope to gain no real or permanent immunity, no matter how completely they might defeat the three who had seen the fruits of their detestable experiment. They could not hope to stop their mouths for good without actually killing them all, and that way led straight to the electric chair.

Nevertheless, their fears urged them on, and it looked as if nothing short of murder would satisfy them.