In that second, a large cloud of blue coalesced around Errol before a gust of wind sent the boys tumbling backward. The cloud was visible to everyone, whether they had the ability to see mana or not, the blue streaks that constantly entered Errol's body could be seen clear as day.
The pressure that Errol was emitting made Arya's knees feel weak, it was as if the gravity around him had increased two-fold while at the same time it ignored his blood making him feel nauseous.
However Arya dismissed all this once he got a look at Errol. A moment ago, Arya couldn't even see Errol's mana core -sure he could see Errol's body interact with the mana around him- but now it was as if the veil had been removed.
