The Jewelled Crown of Minorly was the symbol of everything the Wastefield Tribes despised, the Kingdom’s order, wealth, the rule of law. Thus, naturally, when the two sides went to war, the Kingdom made sure the Crown was well protected, lest it fall into the hands of the Tribes.
But there was at least one master thief who valued money over the Kingdom.
After the Crown was stolen, the Kingdom was on high alert, almost every citizen was loyal and searched for it.
The Kingdom assumed it would be smuggled out to the Tribes.
Blowing it up, that surprised them.