Thank you all for your responses. Very useful info!
I unearthed and this is what I found:
Caudex and roots are very healthy, NO sign of root rot. I placed the plant to dry... away from the constant and plentiful afternoon rains we've been getting this week.
Hopefully I can nurse it back to health...
It is such a dance with adeniums... my plummies are actually thriving with this mix of hot/rain/hot/rain!