A month later.
[BOOM!]
A small explosion resounded in the cave.
A man sat on the floor in front of a cauldron. Dense smoke came out of tiny holes as a pretty disgusting smell spread in the cave.
'Another failure' Andrew sighed as his hand reached for a bag as he pulled out a weird-looking purple grass with a blue flower alongside it.
Andrew opened the lid of the cauldron as he put in the materials once again. The cauldron's insides were pretty charred as it showed evidence of repeated failures.
With calm, Andrew inhaled in mana as his concentration reached new limits. He unruffled his mana sense and it could be seen that it had become bigger. It spanned over 26 meters in radius!
He concentrated his mana sense on the cauldron as his perception increased by many folds. He didn't let it stay in its default state aka sphere since he needed a maximum amount of concentration on the cauldron and materials within it.