As the team continues their journey to the Atrovian Cascades and to its highest village of MOUT, they meet a merchant who needs assistance getting there himself...

See below for the cryptogram:

MESSAGE:

21 25 2 5    12 11 26 18 13 10 14 17 18    6 11 22 2 20    21 18    14    10 18 4 20 14 26 11 14 4.

1 26 25 10 18 18 16     15 11 20 2     18 7 20 26 18 6 18     10 14 24 20 11 25 4.

CODE:

A - 14, E - 18, I - 11, O - 25, U - 24