bournemouth university. it was a sort of running joke that i was bossing everyone around, leading the police diving team, telling them where to look. when the police were satisfied it wasn't a crime scene, it was over to the archaeologists. this was likely to be at least centuries old and the radiocarbon dates have borne that out, with a date of somewhere between ad 400 and 600. but this is a period for which we don't know very much. he's a smart young man and the most important thing is that tom and his mum did the right thing and informed the coroner. the skull is likely to go to the county museum, and tom? well, he's hoping for more. i am a treasure hunter, yes. people find gold, silver, old coins in rivers. to be honest, i'm not even sure anything really beats a human skull. simon marks, bbc south today.