Oliver was slightly taken aback by Lua's harsh tone. It was certainly unlike to Lua he used to know. He shook his head.
"If you say so. But remember, I warned you."
Oliver then turned around, and began to make preperations for departing. He clearly had no more interest in their conversation, or had better places to be. Regardless, he was about to leave. In a moment of indecisiveness, he called out to Oliver.
"How can I contact you?"
Oliver stopped in his tracks. Without turning around, he answered Lua's question.
"Send a letter to 15 Wigan Street. You'll get a response sometime within the month."
Then, he jumped off the building, an impossible height for your average human. Lua rushed to the ledge to see if his brother was alright, but he had already gone out of sight. Oliver had disappeared.