SNIP Anna Erelle is living in terror, having crossed ISIS, also known as the Islamic State. She has received death threats and abuse online and a video of her is circulating accompanied by Arabic text that reads: “Brothers around the world, if you see her, kill her.” On her smartphone, Erelle has a CCTV picture of three British girls — Shamima Begum, 15, Kadiza Sultana, 16, and Amira Abase, 15 — as they passed through Gatwick airport two weeks ago in flowing scarves and skinny jeans, en route to join ISIS in Syria. SNIP