I am about to start running the Jade Regent adventure path. It'll be my second Adventure Path I've run, having just finished running Carrion Crown. However, I've had 2 more people than I expected want to join the game and I unfortunately can't exactly kick anyone out without hurting feelings. The module is recommended for a party of four, so my question was: what is the best way to make a module such as this challenging for six players? Thanks!