'Only a fool wouldn't be suspicious...'
Evelyn mocked the Shapeshifter inside her head for trying an obvious trick despite supposedly having been living for a long time, it's clear that this shape-shifting creature is underestimating her and Gistella since they both only have seventh-rank realm power.
But now that both of them show that they were not pushovers, the Shapeshifter turns serious.
Since it was trying to mimic a black hand to catch Gistella and Evelyn off guard, it didn't use its full power yet but now that the plan has failed the Shapeshifter lets his transformation slide away because of the ringing shadow sound.
Now their eyes bear witness to the monstrous original form of the Shapeshifter.
