This is a special signal flare distributed to reconnaissance squads, made from the urine of a High-Tier Demon Beast marking its territory!
A High-Tier Dragon Descendant's sense of smell can detect the scent of blood tens of kilometers away, let alone the scent from such a specially made signal flare.
It means: Significant discovery, urgent support needed!
...
Having done all this, Leonard Churchill wiped away any traces of his presence, then hid several kilometers away.
Sure enough, it wasn't long before the overwhelming pressure of an approaching storm arrived, and in the blink of an eye, a Three-headed dragon flapped its leathery wings as the Fire Dragon hurried towards him.
One Seventh Grade, two Sixth Tier.
Upon seeing the leading Red Dragon with scars above its eyes, Leonard thought with a sneer, "Yo, the Legion Commander himself has come..."
The person approaching was none other than Bane, the Legion Commander of the Ninth Legion.
Perfect timing.