"The Demonic Scripture" was carried by Shi Feiyang himself. If E Shengfan suddenly turned hostile at a critical moment and he hadn't anticipated it, it would truly be an "unexpected trouble"!
However, Shi Feiyang was somewhat puzzled for a short time. This guy was clearly bound within the Demon Scripture, much like the two magical witches, Stone God and Red Flower, equivalent to "Book Spirits".
This Demon Scripture had also been refined by Shi Feiyang, so he definitely wouldn't be able to emerge and attack him at will like the two magical witches.
Unless he borrowed some external force...
Shi Feiyang watched his techniques closely, noticing not only demonic methods but also Buddhist skills.