Rab watched as Guilian seemed to understand and accept what was happening. He felt proud at that moment, having gained a student to train and pass on his vast knowledge. Soon, Guilian would harness the dark just like he did and become more than he ever imagined.
He was also very pleased with how smart the boy was when he asked if anything should go wrong. He took a small medallion from his pocket, weaving a familiar spell on it. "Keep this on you at all times," he said as he handed it over, "It is an emergency Portkey that will bring you to wherever I am. ONLY use it in an emergency." He smiled, doubting Guilian would ever need to use it.
"Now... let us return to the Casino and see what delights await us," he said, leading Guilian out of the dungeons and back upstairs. He told a house elf to 'get rid of the mess' once the Muggle finally died.