"For the pirate quest, the alchemist could be out of water breathing potions and tell the player "I need some time to make a new batch, please check back later", and they'd become available after an undetermined time (aka: once the players has sufficient levels)."
From this thread:
http://www.layonara.com/community-pr...rc-brutes.html
Additionally, The main Pirate captain needs to have the appropriate feats and should be checked for balance.