An only connect wall. Or is it?
Here is a text version of the table:
+--------------+--------------+--------------+--------------+
| Music | Chamber | Clay | Saturn |
+--------------+--------------+--------------+--------------+
| Castle | Tree | Snow | Stone |
+--------------+--------------+--------------+--------------+
| Trip | Candle | Engagement | Havoc |
+--------------+--------------+--------------+--------------+
| Ashes |Tower of Hanoi| Surprise | Small |
+--------------+--------------+--------------+--------------+