Out of the Frying Pan, Into the Fire.

And with the destruction of the crimson soul, the curtains of the battle against the Stage 5 being finally closed.

Lucius having escaped from that blank space and having turned the table on the Master finally heaved a sigh of relief after confirming the destruction of the latter.

'That wraps up our crisis. He's finally dead.' 

'While this endeavor was mostly fruitless, I did receive some interesting compensation.' Lucius' referred to the entire set of memories that he had received from the Master.

While this was not an intentional move by the other and was an unexpected side benefit from Lucius' actions, it was nonetheless a freebie. 

Lucius continued to observe a certain memory fragment within his soul with taut attention. After waiting for a few minutes, he finally let go of his worries.