LVL 16

Finished lvl 15 and was just starting 16 had to stop for the night. Now I cannot find it anywhere on the screen. Have clicked on all the areas ie .. cabin.. forge ..stronghold and actually everywhere on the darn screen. Level 16 does not show and I cannot access it. How did I loose it? Where is it? See lvl 17-19-20-21 which I cannot open yet and all the ones I have opened but NO 16 anywhere.

Sorry, Figured it out I needed to achieve some quests. Now I have been advanced to LVL 17.