Summer Camp at Trebizone by Anne Digby

'She was on her way back to Trebizon'
 
When Rebecca's summer holiday plans are thrown into chaos, she's relieved to find herself back with her school friends Tish, ELF, Sue, Margot and Mara helping out at Trebizon summer camp. 
 
There are hige dramas ahead including the search for some legendary Roman treasure...