Unlike Angus's own cloak artifact, the other invisible cloak could malfunction if they are moving too fast. The maximum speed they could use is at a person walking speed.
Moreover, it also consumes mana just to maintain the invisible cloak. The consumption mana rate is also higher than the one Angus had. Fortunately, Angus chose his team with the minimum strength of a third-grade combatant.
The third-grade combatant has plenty of mana to supply the invisible cloak for a half-day, which is enough for Angus's plan.
Arriving at the meeting point outside the Ancestral Ruin first, Angus immediately uses [Great Mana Echolocation] to detect the surroundings.
"Hmm.. It seems it will take some time before the others reach here. The other team also began to move according to the plan. They move fast." said Angus.