...de Kercadiou had already done what thinking was necessary, and her alert young mind had settled all that was to be done... 
Rafael Sabatini 「Scaramouche」
... Beside them, and opposite each other, stood Le Chapelier and the young captain, alert and watchful...
Rafael Sabatini 「Scaramouche」
... She did not realize how far she and Gazan hadbecome separated from the balance of the tribe, nor were her defensivesenses upon the alert as they should have been...
Edgar Rice Burroughs 「Jungle Tales of Tarzan」
...His eyes, his ears and his keen nostrils were ever on the alert...
Edgar Rice Burroughs 「Jungle Tales of Tarzan」
... Nor wasit long before the ape-man came upon Bara standing alert at the edge ofa moon-bathed clearing...
Edgar Rice Burroughs 「Tarzan and the Jewels of Opar」
... Presently,along the game trail that Werper and Tarzan had been following, therecame in sight a sleek, black warrior, alert and watchful...
Edgar Rice Burroughs 「Tarzan and the Jewels of Opar」
... guardian powers that hadformerly rendered him immune from the dangers of surprise? Could thisdull sleeper be the alert...
Edgar Rice Burroughs 「Tarzan and the Jewels of Opar」
... the alert mind...
Baroness Orczy 「El Dorado」
...Having once walked out of this cell hale, hearty and alert, be the escort round him ever so strong, he never would have re-entered it again...
Baroness Orczy 「El Dorado」
... A warm glow began to fill her veins, she felt excited and alert, absolutely unconscious now of pain or fatigue, in this radiant joy of reawakened hope...
Baroness Emmuska Orczy 「The Elusive Pimpernel」
...He was plucky and alert, and his hatred for this man was so great that he had actually ceased to fear him...
Baroness Emmuska Orczy 「The Elusive Pimpernel」
...The little servant stood all the while in respectful stillness by the door; but I could see by a glance at his alert face that he followed the whole scene with keen attention...
Anthony Hope 「Rupert of Hentzau」
...Cyrus, of New Orleans, suspected slaver, captured bythe British cruiser Alert...
W. E. B. Du Bois 「The Suppression of the African Slave Trade to the United States of America」
...Opportunity often presents itself literally at a moment’s notice and in the most unexpected fashion, and the one who profits by it is he who is alert enough to seize it as it passes...
Harry Collingwood 「The Adventures of Dick Maitland」
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