Lith and Solus moved on the ceiling, slipping from one crack to another to never create a patch of darkness large enough for the skeletons to notice.
Strider and Ryka, instead, moved below the ground without producing a single vibration. The only issue with the Titania's means of transportation was that with only Earth Vision to sense her surroundings, she had no idea where the next safe area was.
She moved slower than Lith to make sure the undead wouldn't notice them and give the Tiamat a head start. Once Lith reached the other side of the west corridor and reverted to his human form, Ryka took it as her cue.
She dug her way to him and emerged a few meters past his position, just to be safe.
'How did you escape detection?' Solus asked. 'The arrays protecting the area were supposed to pick up the alterations in the ground.'
'Indeed.' The Titania nodded. 'That's why I used my mastery over earth magic to collect the residual energy of the skeleton's spells and shrouded us with it. It's a known anomaly that the undead know will linger for a bit so they didn't pay attention to it.
'After all, these arrays are set to detect alterations in the earth element, not movement. As long as the residual energy lasts, you could move it around the whole crossroad and the ping would remain the same.'
'Very smart, but this is not a trick we can use again. We won't find a leak at every turn.' Lith said and the group resumed their advance.
They found multiple bifurcations and if not for the Eyes always pointing in the right direction, they would have gotten lost many times over.
'I understand now why they didn't place more skeletons and magical formations.' Solus pondered after another hour had passed. 'This place is a natural labyrinth. Putting guards at every turn would require raising a whole undead army.
'To keep it active would need so much light element that the undead would live just to feed the skeletons. Using permanent arrays to cover the whole area would be even worse.
'The mana crystals needed for supporting so many magical formations would bankrupt even an ancient noble household.'
The builders had opted for setting traps in the dead ends and checkpoints at the important junctions to not waste resources. Lesser undead had no intelligence and required constant supervision.
The second checkpoint marked the end of their safe journey.
'Stop right there!' Ryka raised her closed fist. 'There's something heavy in front of us. It moves on two legs but that's all I can tell you from this distance.'
Life Vision saw nothing while the Eyes perceived a blur of magical energy.
'There's two, no three creatures.' As they approached, the vibrations from Earth Vision gave her more details on the nature of their unknown opponent. 'Shit! I stand corrected. Three creatures are moving and two more stand still.
'I failed to notice them earlier because they are made of stone and I mistook them for part of the corridor.'
'Stone?' Strider echoed.
'Yes. They are all identical. Probably crafted by the same person.' The Titania nodded.
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