"Hmm?" Stephen was curious.

"I had given Mark some drowsy incense. But he gave it to Chuck and asked him to research and replicate it. It wasn't because he trusted Chuck, but rather to test him. However ..."

Yvonne paused and continued, "Chuck isn't so dumb as to add something inside, is he?"

"What if that was Leonard and Claude's order?" Stephen asked.

"Then …" Yvonne smiled.

"That's too bad. If both sides want Chuck dead, he has no choice."

When she had initially informed Mark about Ch