Make good your escape
Definition 1 of 1
Pro Tip 1/3Literal Use
Used when someone physically escapes, often from confinement or a dangerous situation. 
The prisoners dug a tunnel to make good their escape.
Pro Tip 2/3Figurative Speech
Can be used metaphorically to indicate avoiding a non-physical predicament. 
She made good her escape from the boring conversation.
Pro Tip 3/3Not Modern
It's quite formal and somewhat old-fashioned; not commonly used in everyday modern English. 
In the novel, the spy made good his escape using a disguise.