The forest was quite fiendish, yet Rui couldn't help but be curiously drawn towards the many strange things that were said to be present within it. There were many traits and properties of the forest that contributed to its overall threat level.
One of the consequences of the mental consumption of the predatory flora of the forest was the fact that it affected the sensory capabilities of all people who entered the forest. It didn't actually affect the senses of the victims, however, suppression of the mind led to suppression of the senses indirectly, for the mind processed senses and understood the world around them through that.
As a result, the range of senses decreased remarkably, leading to an increased difficulty in the search for the Hypnomaster's location.
'That's probably also on purpose since the sensory range of Martial Seniors would otherwise be able to allow them to scour the entire forest within a reasonable timeframe.' Rui mused.