Sunken Temple appears on lists as "undefined"

https://tcubuntu.northeurope.cloudapp.azure.com/aowow/?zone=1417

![image](https://user-images.githubusercontent.com/1001553/93942461-baa73800-fd30-11ea-932f-e7a7750b9cf3.png)

Also on items:

https://tcubuntu.northeurope.cloudapp.azure.com/aowow/?item=10454