Ditto searching for Portal Pieces

So after talking to Leland in Stormriven – or as I like to call him, ‘Mister Grumpypants’ – it turns out that those portal pieces that I’ve been tripping over for the past several quests are actually important, and he needed me to go collect them.  I gathered them up, and of course there was one missing – there’s always one missing, is there?  So we have to go find some other guy to tell us where the last portal piece is… think it will require a battle?