With the half-machine acolyte Atlas' ability, coupled with Chumo's reconnaissance skill, the Abyss nest interior was quickly mapped out.
Of the half a dozen tunnels within the nest, only two lead to the main chamber hidden 20 miles deep underground, while the other four actually lead to a dead end. If it wasn't for Atlas' ability, the six of them would have gotten lost in the nest, wasting their time searching for the true path.
"Wow! It spread so far underground!" Klea exclaimed as she scanned the image Atlas projected.
Not only was it able to sense their rough location, Chumo's [Eye of the Raven] also perceived the number of Abyss creatures residing within the nest. He sensed that there were around five thousand of stage 1, a few hundreds of stage 2 as well as dozens of stage 3, and about half a dozen stage 4 Abyss creatures.
He didn't detect any stage 5 Abyss creature, unless the latter for some reason had the ability to hide its existence.