MM6 Obelisks

If you put them in order and read down each column you will see the clue

1   I t o t e c t h o t h e s a i p
2   n h r h _ a h e r h e a t v d i
3   _ e t e c p e _ _ e r s o e d e
4   t _ h a a t _ l t _ _ e n _ l c
5   h d _ s c a w e h S f d e w e e
6   e r b t h i e a e u u , _ o ' d
7   _ a y , e n i s _ n n _ a n s .
8   l g _ _ _ _ g t S _ c l n ; _ _
9   a o f l o ' h . h b t i d _ p _
10  n n a i f n t _ i e i f _ t u _
11  d _ r e _ e _ H p f o t y h z _
12  _ t _ s t a o i _ o n _ o i z _
13  o o n _ h t f d o r s t u s l _
14  f _ o t e h _ _ f e _ h _ _ e _
15  _ n r h _ _ t f _ _ c e h r _ _

In the land of the dragon to north by far northeast, lies the cache of the captain 'neath the weight of the least. Hid for the Ship of the Sun before her functions ceased, lift the stone and you have won; this riddle's puzzle pieced.

Even though you know the clue, you still need to go touch each Obelisk to be able to access the treasure.  The treasure can be found in a Rock container in Dragonsand NE of the pyramid.  The chest contains 250,000 gold, high level Spell Books, and 3 artifact items that boost spell casting.