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Incoming Resources
- Riddle, A. G, Long Winter, [bk. 3]
- Winter world, A.G. Riddle
- The lost colony, A.G. Riddle
- Quantum radio, A.G. Riddle
- Lost in time, A.G. Riddle
- The extinction trials, A. G. Riddle
- The solar war, A.G. Riddle
- Antarctica station, a thriller, A. G. Riddle