User blog comment:Roman à Klef/Questions on My Mind/@comment-24850639-20170627163325/@comment-27930128-20170628020421

After Jack and the gang defeated, Inuarashi did say that they need to figure out how Jack found Zou. It is still a mystery on how they found Zou and if it is "naturally", in case of Pekom, Inuarashi should have known it (if it is the only way to track Zou)