Here is the first look at the monster in his lair. Newly surfaced photos obtained by The Post reveal for the first time how Jeffrey Epstein — and a horde of girls — spent time at his now-notorious Caribbean hideaway, nicknamed “Pedophile Island’’ by locals. The multimillionaire convicted pedophile is dressed casually in the creepy snapshots, including one in which he chats on the phone — while getting a massage from a grinning young blonde who appears to be his assistant, Sarah Kellen. Some of the snaps feature intimate glimpses into the late fiend’s luxurious digs, including a white-drenched bedroom...