Zagged from one library arc through another puzzle-locked shortcut into yet another library arc. Defeated a Bulette and a rainbow puzzle (and overcame lack-of-purple-seeing) but lost our guide in the process. Soldiered on anyway. Found a cavern with a big old stone door. Battled a fragment of an old god. Won (?) by finding a key and unlocking the door. Are we even going the right way?