หนุมานจับนางสุพรรณมัจฉา (Hanuman catches Suvannamaccha) is a Shadow Puppet Chamber Opera based on the episodes of the Thai Ramakien/Lao Phra Lak Phra Lam that takes place during the building of the Causeway to Lanka. The style of shadow puppet theater is Nang Pramothai, a form found in Northeastern Thailand and Laos (what is known as the Isan region where Jon Silpayamanant was born).