Reflecting light in
7 different colors, Harkon
is the most cared treasure for
the Altheans as well as the symbol
of their worship.
It emits 7 different colored lights
just like rainbow but to see all
of them you need a unique ability
to recognize the ultra ray. For
this reason, an ordinary person
has no way of identifying Harkon
which leaves the existence of
Harkon one of the myths yet to
be proven. Right in the middle
of Altheo stands a sculpture made
with pure Harkon and this sculpture
has a special power to draw in
all other Harkon stones. That
is why Harkon stones are only
found in Alteras Mountains where
Altheo is located.
To get to Altheo, you not only
need to collect all 16 special
cards, but you also need a compass
made with Harkon stone. These
two items will lead you to the
largest Harkon stone hidden inside
the lost city of Altheo called
Blessing of Poseidon
Part
5 Legendary jewel, 
Harkon
