Immediately. Source: A King James Dictionary. (Used with permission. Copyright © Philip P. Kapusta)
And Jesus said unto them, Come ye after me, and I will make you to become fishers of men. And STRAIGHTWAY they forsook their nets, and followed him. ( Mark 1:17-18 )
Bibliography Information"Entry for 'Straightway'". Dictionary of Words from the King James Bible. . New York, N.Y., 1999.