John remained calm, but couldn't help but feel some tension. Paying with spirit crystals had never been something he had to be cognizant of, and so it had been a natural reaction to pay with his spirit crystals. Only after handing them over did he realize the problem.
'Hopefully this doesn't cause a problem.'
The guard stared at the crystals for a moment, then at John. A questioning look appeared on his face.
"Where did you get these spirit crystals?" the man asked.
A perplexed look appeared on John's face, as if he had not been expecting such a question. Answering too quickly would reveal he had already expected such a question.
"From a merchant near the Light Dao Sect," John shrugged. "Is there something wrong?"
"These crystals…they're quite strange," the guard replied, still studying them closely. "They feel…different than what I'm used to."