The monarch of the mountain crags, having circled the elm, had found a way in where the foliage was least dense, and had thus with irresistible power carried the outer defenses of that little hanging citadel.

And still the little streak of red showed up there in the dimness of those invaded branches, and one might have fancied it to be the colors of the besieged victim, flaunting still in a kind of hopeless defiance.  Down out of the green twilight above floated a feather, then another—­trifling losses of the conqueror in his triumphal entry.

“You’re not going to get away with that,” said Hervey in a voice tense with wrath and grim determination; “you’re—­you’re—­not——­”

What happened then happened so quickly as almost to rival the descent of the destroyer in lightning movement.  Before Tom Slade realized what had happened, there was Hervey’s khaki jacket on the ground, his discarded hat was blowing away, and his navy blue scout scarf was plastered by the freshening breeze flat against the trunk of the tree.

Hervey Willetts, who had dreamed and striven all through the vacation season of “capturing the Eagle,” as they say, was on his quest in dead earnest.

CHAPTER VIII

EAGLE AND SCOUT

Up, up, he went, now reaching like a monkey, now wriggling like a snake.  Now he loosed one hand to sweep back the hair which fell over his forehead.  Again, unable to release his hold, he threw his head back to shake away the annoying locks.  Tom Slade, stolid though he was, watched him, thrilled with amazement and admiration.

The great bird was embarrassed in the confines of the foliage by its big wings.  But the freedom and strength of its cruel beak and talons were unimpaired and every second brought it nearer to the hanging nest.

But every second brought also the scout nearer to the hanging nest.  Up, up he went, now straddling some bending limb, now swinging himself with lightning agility to one above.  Once, crawling on a horizontal branch, he slid over and hung beneath it, like an opossum.

Twisting and wriggling his way out of this predicament, he scrambled on, handing himself from branch to branch, and once losing his foothold and hanging by one hand.

Tom Slade watched spellbound, as the agile form ascended, using every physical device and disregarding every danger.  More than once Tom almost shuddered at the chances which his young companion took upon some perilously slender limb.  Once, the impulse seized him to call a warning, but he refrained from a kind of inspired confidence in that young dare-devil who by now seemed a mere speck of brown moving in and out of the darkened green above him.  Once he was on the point of shouting advice to Hervey about what to do in the unlikely event of his reaching the nest before the eagle, or in the more serious contingency of an encounter with that armed warrior.