Morse and Lewis investigate the death of Laura Poindexter, an American tourist who is part of an exclusive tour group visiting Oxford. Missing from her personal effects is her jewelry, including the Wolvercote Tongue which she was going to donate to the Ashmolean Museum. The pathologist determines that she died of natural causes, but Morse feels there's something not quite right. The mystery deepens when Theodore Kemp, the Ashmolean's expert on the Wolvercote Tongue, is found dead and Mrs. Poindexter's husband goes missing.楚翔一把抓住射过来的子弹，狙击手显然是害怕了，接下来几乎是胡乱扫射，楚翔双手看似泼妇打架般在身前乱抓，那些攻击的弹头其实都被他接住，瓦洛克等人当然也不是吃闲饭的，这会儿功夫已经确定了狙击手位置，众人的枪口一置对向一间办公室，后来甚至用上了近卫队专用的低威力手雷，在近两分钟的狂轰乱炸下那间办公室再也射不出子弹来，派人进去清理找到一具近似烂肉的尸体，连样子都看不出来。