At a quick pace; quickly.
Wherefore have I seen them dismayed and turned away back? And their mighty ones are beaten down, and are fled APACE, and look not back: for fear was round about, saith the LORD. Let not the swift flee away, nor the mighty man escape; they shall stumble, and fall toward the north by the river Euphrates. ( Jeremiah 46:5-6 )
Bibliography Information"Entry for 'Apace'". A King James Dictionary.