This was the more keen, because the engineer knew at a glance that the bone was the upper end of a human femur--human, or, at the very least, belonging to some highly anthropoid animal. And of apes or gorillas he had, as yet, found no trace in the forests of Manhattan.
Long he mused over his find. But not a single word did he ever say to Beatrice concerning it or the flint spear-point. Only he kept his eyes and ears well open for other bits of corroborative evidence.
And he never ventured a foot from the building unless his rifle and revolver were with him, their magazines full of high-power shells.
The girl always went armed, too, and soon grew to be such an expert shot that she could drop a squirrel from the tip of a fir, or wing a heron in full flight.
Once her quick eyes spied a deer in the tangles of the one-time Gramercy Park, now no longer neatly hedged with iron palings, but spread in wild confusion that joined the riot of growth beyond.
On the instant she fired, wounding the creature.
Stern's shot, echoing hers, missed. Already the deer was away, out of range through the forest. With some difficulty they pursued down a glen-like strip of woods that must have once been Irving Place.
Two hundred yards south of the park they sighted the animal again. And the girl with a single shot sent it crashing to earth.
"Bravo, Diana!" hurrahed Stern, running forward with enthusiasm. The "deer fever" was on him, as strong as in his old days in the Hudson Bay country. Hot was the pleasure of the kill when that meant food. As he ran he jerked his knife from the skin sheath the girl had made for him.
Thus they had fresh venison to their heart's content--venison broiled over white-hot coals in the fireplace, juicy and savory--sweet beyond all telling.
A good deal of the meat they smoked and salted down for future use. Stern undertook to tan the hide with strips of hemlock bark laid in a water pit dug near the spring. He added also some oak-bark, nut-galls and a good quantity of young sumac shoots.
"I guess that ought to hit the mark if anything will," remarked he, as he immersed the skin and weighed it down with rocks.
"It's like the old 'shotgun' prescriptions of our extinct doctors--a little of everything, bound to do the trick, one way or another."
The great variety of labors now imposed upon him began to try his ingenuity to the full. In spite of all his wealth of practical knowledge and his scientific skill, he was astounded at the huge demands of even the simplest human life.