第437章 护法炼丹

    手掐剑诀，许半生喊了一声疾，那鼎炉的盖子便自行缓缓飞起，许半生的手掌一晃，数味药材便出现在他的掌心之中。

    手掌翻动，那些药材便飞入到鼎炉之中，没有半点遗漏。

    双手环抱，小小的鼎炉缓缓落在许半生的双手之间，随即滴溜溜的旋转起来，不一会儿便化作一道黑黄色的光芒，其旋转的速度快到平常人的肉眼几不可见的地步。

    在朱弦和许半生的眼中，这鼎炉当然还是清晰可见的，朱弦看得清楚，鼎炉已经发出暗红色的光芒，这是许半生用他炼制的三味真火在灼烧着鼎炉。

    三味真火，是道家修行者独有的真火，无色透明，不像平常的火焰那样有颜色，若不是能够引起空气的些微波动，根本就察觉不出三味真火的存在。

    鼎炉的温度已经极高，许半生却依旧在持续的为鼎炉加温。

    在许半生的额头之上，已经隐隐约约出现了几滴汗水，像是许半生这样寒暑不侵的身体，能够让他出汗，可见其已经耗尽自身的精气。

    心念一动，空间戒指之中跳出一颗补气丹，许半生口一嘬，那补气丹便进入他的嘴里，瞬间化作涎液流下，被许半生完全吸收，他的精气又恢复到全满的程度。

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