Timyra

Timyra is the Zealan goddess of fear.

She was scheduled to appear in The Lost Vale, where the Elemental Titans had locked her together with her fellow gods Felicitar and Doloras into force fields. It obviously would have been the Avatar's job to free them to gain their help.

However, The Lost Vale was cancelled and the only mention of Timyra is in a book about the old Zealan religion written by Yradan the Scholar.