The shadows that had been wrapped all over Leo slipped away as his body shrank. It wasn't that he no longer had the Enigma to manifest them, rather…
'Find it.'
Leo was using them all to invade the monstrosity's body!
One of the pieces of information that he perceived through the Horror's shadow was that it had no true vital point.
Unlike regular monsters or even the gargoyle abominations that Leo had met recently, there was no 'neck' to cut or a 'heart' to crush.
The Horror was no different from a sturdy piece of flesh that operated without a brain. Its actions and thought process were ingrained into its body using some advanced method that Leo couldn't grasp.
As such, there was only one killing method that Leo could rely on. One that had been properly tested and confirmed to be effective. The way the Horror died in the novel!
'It should be an easy target.'
He had to rip off the Horror's indispensable source of energy, its Enigma Stone!