"Then… why are you leaving?"
The bright grin on Penny's face faded at that question. Surprised that Slater knew about it, her brows slowly knitted together.
How did he know?
"Some time ago, I overheard you and Professor Singh talking," he said quietly, eyes cast down a little. "I didn't mean to eavesdrop, and I was simply going back to the library to get something. But I heard him talking about taking you in as his apprentice and that you would have to leave the house."
Slater explained his side of the story, including his assumption that apprenticeship was withdrawn. After all, Penny didn't seem she was planning to leave in the past several weeks. Matter of fact, even their parents didn't mention anything about it to them.