The hammer fell into the well
A Chinese idiom, CH è ngchu í Lu ò J ǐ ng in pinyin, means like a hammer falling into a well, no trace, no news. It comes from Volume I of Luo Hu Ye Lu by Shi Xiaoying of Song Dynasty.
The idiom comes from Song Dynasty, Shi Xiaoying, Luo Hu Yelu, Volume 1: "Zen master zifushan in Fuzhou: since then, he has been called Chui Luojing."
Chinese PinYin : chèng chuí luò jǐng
The hammer fell into the well