丹炉(lú )中依旧是在炼制丹药(yào )。丹(dān )室(shì )中的光线一向比外(wài )界(jiè )要暗淡一(yī )些,现在又无人在此,寂静幽暗。陈小川坐在椅子上,自(zì )己倒了杯水。咦,这(zhè )是什(shí )么?在那茶桌(zhuō )上,放着一本旧书,上面(miàn )并没有写上书名。陈(chén )小(xiǎo )川随(suí )手拿起(qǐ )书(shū )籍,翻(fān )开(kāi )两页(yè ),里面字迹纸张都有(yǒu )些(xiē )年(nián )岁,书中鲜少有文字,大都是(shì )一些图(tú )画。陈小川看着那张图,