The Zarduthi children discover that the last known place their ship, the Bekel, visited before leaving for Earth, was Declain. The system has an odd feature in that two of Declain’s moons (Bacar and Ammax) and two planets, (Zeret and Khachav), orbit around a common centre of gravity. To an astronomer this could signal past impacts within the system… http://www.zarduth.com/the-declaini-solar-system/