地下城．Ⅳ，神秘印记．Ⅳ，Gregor and the marks of secret 地底王国．4，神秘印记．4，gregor and the marks of secret Gregor and the marks of secret 地下城．Ⅴ，利爪密则．Ⅴ，Gregor and the code of claw 地下城．Ⅲ，温血诅咒．Ⅲ，Gregor and the curse of the warmbloods 地下城．Ⅱ，灾星预言．Ⅱ，Gregor and the prophecy of bane 地底王国．5，最终战役．5，Gregor and the code of claw 地下城．Ⅱ，灾星预言，Gregor and the prophecy of bane