- 时间犯罪(Time Crime)简介：
These are the classic H. Beam Piper stories of the Paratime Police, a law enforcement organization which has learned how to move between parallel universes with alternate histories. They must also protect the secret of paratime travel.
In the Paratime universe, there are an infinite number of timelines, but in each timeline, events occurred differently. They are grouped into five Levels, based on the probabilities of success of an attempt by Martians to colonize Earth 75,000 to 100,000 years ago. They use this time-traveling ability to trade for goods and services which their own, exhausted Earth cannot provide.
- 《恐怖之地》Land of Terror [PDF]
- 《浩劫》The Mantooth [PDF]
- 《超越时间之影》The Shadow out of Time [PDF]
- 《泰山和豹人》Tarzan and the Leopard Men [PDF]
- 《燃烧》Burn [PDF]
- 《头骨月球》The Moon of Skulls [PDF]
- 《魔鬼一样的人》The Monster Men [PDF TXT]
- 《时间犯罪》Time Crime [PDF]
- 《艾伦和圣花》Allan and the Holy Flower [PDF]
- 《神秘博士：玻璃帝国》The Empire of Glass (Doctor Who Novel) [PDF]