During that time, the "Weilüe" recounts a story of how a man named Yang Kang (), who had been a personal aide of Linghu Yu, divulged the conspiracy of Linghu Yu having wanted to engage in a rebellion when he was still alive in 249 or 250. Sima Yi, while stationed in Shouchun, personally asked Shan Gu (), another former aide: "Did Linghu Yu plot a rebellion?" He denied this, but Sima Yi doubted him as Yang Kang had previously asserted that Shan Gu had also been involved in the plot, so Shan Gu and his family were arrested, and he was tortured and interrogated. Shan Gu remained firm in his denial, and so Sima Yi had Yang Kang called in to compare their testimonies. Yang Kang was unable to defend his own rhetoric, so Shan Gu began cursing at Yang Kang. Yang Kang had thought he would be enfeoffed as a reward, but as his own testimony had been inconsistent, he was instead sentenced to death together with Shan Gu, with both of them being dragged out and executed.