It's not very difficult for him to fly up to the entrance, and clear it open, but it's going to be difficult for the rest of the party - particularly Sek'bas!<br/><br/>In addition, as he approaches the hole, a foul stench of rot and decay assails his nostrils, implying that something nasty probably resides inside.<br/><br/>((If they want to continue progressing this way, he'll need to make a Stealth check, if he wants to avoid drawing attention.))