However...
The "generous" rent Senior Brother Raymond paid for the banshees just so happened to be in the form of mid-grade Negative Energy Crystals.
A few days ago, a messenger from Red Ridge Castle delivered the first batch of twenty-four crystals, which now lay quietly in his Space Ring.
He had originally planned to keep these Negative Energy Crystals as a strategic reserve to strengthen his High Tier Undead Units later on.
But it seemed they now had a more important use.
'Ah, Senior Brother Raymond... your rent payment couldn't have come at a better time.' A gratified smile spread across Lynch's face.
This windfall was just what he needed to begin his path of Body Refinement!
He got to work immediately.
Following the method recorded in the [Profound Yin Body Refining Spell], Lynch immediately carved out and reinforced a private chamber next to the Sleeping Tomb beneath the garrison.
Then, he began his first attempt.
