Lumian took a moment to consider. He didn't think there was any real danger.
Philip's concern was based on Bone Splitter Basil's reaction, which only hinted at a potential problem on the ship. While Philip knew which passengers and crew members were suspicious, he couldn't pinpoint the real source of the trouble. He wasn't even sure if he was right, and wouldn't dare to be certain. Therefore, his suspect might not be the actual issue.
In other words, it was more likely that the real problem was actually sitting right beside him: Lumian and his new godson, Ludwig. However, Philip wasn't aware of this, and by excluding them, would mistakenly focus on other suspects.
