21. Several major rivers have their source in the Ioannina regional unit, including Arachthos and Acheron . 22. In November, " Acheron " was nominated for service as gunnery training destroyer. 23. Acheron is a young da'kor and the main protagonist in " Inverloch ".24. The first layer of Acheron , Avalas, is also called " The Battlefield ". 25. He placed many of the later episodes on the north west Greek coast, near the Acheron . 26. Acheron Design has built and maintains a game engine for simple, rapid development of 2D games.27. "' Acheron Fossae "'is a trough in the Diacria quadrangle of Mars. 28. "Acheron " fought on for another quarter of an hour before she too struck. 29. As " Acheron " sails away, Maturin mentions that their doctor had died months ago. 30. Alternatively, the Acheron river might have changed its course over time to the south of the city.