I doubt he would pick a name like Master Blue.

[ Maybe something like Mr. Freeze or something stupid like that ]

This place would have also given him ample opportunity to take you without anyone noticing.

[ Frowning for a moment before he yawns. He can feel the corner of his eyes tear up from sleepy. When your brain wants to puzzle things out, but you haven't slept in days. Last night's passing out didn't even give actual rest. It was stupid and unfair. ]