D2-028 The Time Pendulum (9-Dec-1957 to 25-Jan-1958)

Writer: Harvey Kurtzman
Art: Dan Barry

Summary: Finally approaching the Forest Kingdom after their many adventures on Mongo (see D2027 Radioactive Loot), Flash and Dale are attacked by two men who suddenly vanish in thin air, and shortly afterwards their imminent arrival at Arboria is prevented when the route to the city inexplicably lengthens before their eyes.

Soon realising that somebody is manipulating the past in order to affect the present, Flash and Dale decide to confront their mysterious attackers head-on in a reality that constantly changes depending who is in control of the crucial time factor...

(Source of summary: www.ipcomics.net)

Collect it and many more D2 - Here

It's from Emile's e-collection. All credits go to her & "Allen Lane" who scanned and first shared at net.