Not long after, in olden times

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
obsolete or archaic way of saying "soon afterward," from Old English eftsona "a second time, repeatedly, soon after, again," from eft "afterward, again, a second time" (from Proto-Germanic *aftiz , from PIE root *apo- "off, away;" see apo- ) + sona "immediately" ...

Wiktionary Word definitions in Wiktionary
adv. 1 (context obsolete English) once again; another time. (11th-17th c.) 2 (context now archaic English) Soon after, presently. (from 13th c.)

Wikipedia Word definitions in Wikipedia
Eftsoons is an album by American avant-garde jazz composer, bandleader, and multi-instrumentalist Hal Russell with Mars Williams recorded in 1981 and originally released on the Nessa label.

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Eftsoon \Eft*soon"\, Eftsoons \Eft*soons"\, adv. [OE. eftsone, eftsones; AS. eft + s[=o]na soon. See Eft , and Soon .] Again; anew; a second time; at once; speedily. [Archaic] And, if he fall from his capel [horse] eftsone. --Chaucer. The champion stout ...