join　in　our　plot　and　play　the　traitor；　and　Kan　Ze　also　wrote；　and　they　sent　the　letters　secretly　to　Cao　Cao。

Kan　Ze's　letter　said：

〃Huang　Gai　has　found　no　opportunity　so　far。　However；　when　he　es；　his　boat　can　be　recognized　by　a　black；　indented　flag。　That　shall　mean　he　is　on　board。〃

However；　when　Cao　Cao　got　these　two　letters；　he　was　still　doubtful　and　called　together　his　advisers　to　talk　over　the　matter。

Said　he；　〃On　the　other　side　Gan　Ning　has　been　put　to　shame　by　the　mander…in…Chief　whom　he　is　prepared　to　betray　for　the　sake　of　revenge。　Huang　Gai　has　been　punished　and　sent　Kan　Ze　to　propose　that　he　should　e　over　to　our　side。　Only　I　still　distrust　the　whole　thing。　Who　will　go　over　to　the　camp　to　find　out　the　real　truth？〃

Then　Jiang　Gan　spoke　up；　saying；　〃I　failed　in　my　mission　the　other　day　and　am　greatly　mortified。　I　will　risk　my　life　again　and；　this　time；　I　shall　surely　bring　good　news。〃

Cao　Cao　approved　of　him　as　messenger　and　bade　him　start。　Jiang　Gan　set　out　in　a　small　craft　and　speedily　arrived　in　the　Three　Gorges；　landing　near　the　naval　camp。　Then　he　sent　to　inform　Zhou　Yu。

Hearing　who　it　was；　Zhou　Yu　chuckled；　saying；　〃Success　depends　upon　this　man。〃

Then　Zhou　Yu　called　Lu　Su　and　told　him　to　call　Pang　Tong　to　e　and　do　certain　things　for　him。

This　Pang　Tong　was　from　Xiangyang。　And　he　had　gone　to　the　east　of　the　river　to　get　away　from　the　strife。　Lu　Su　had　remended　him　to　Zhou　Yu；　but　he　had　not　yet　presented　himself。

When　Zhou　Yu　sent　Lu　Su　to　ask　what　scheme　of　attack　he　would　remend　against　Cao　Cao；　Pang　Tong　had　said　to　Lu　Su；　〃You　must　use　fire　against　him。　But　the　river　is　wide　and　if　one　ship　is　set　on　fire；　the　others　will　scatter　unless　they　are　fastened　together　so　that　they　must　rema