The scenario had called for him to effect his escape through one of the parlor windows.

But in the time it would take for them to effect their escape from the Glory, it might already be too late.

"If we effect our escape, well, three months, usually. "

Possibly he could effect his own escape with the connivance of Rudolph, and at the same time free the boy.

Now listen to the plan by which I hope to effect my escape.

No purely natural effort is going to effect his escape from this siege.

If you don't I may be forced to kill you in order to effect our escape.

By that time I may have found a plan to effect your escape.

"However, if we are to effect our escape, we must not lose any time."

He had, it would seem, to adopt disguises to effect his escape.