The Thulsoma/Summerdale merger was that the Queen or king got lightning bolted for a couple of days and we were told not to try a merger. Which we did anyways by abandoning Thulsoma inthe end but never tried to recover the old regions because the Summerdale nobles were extremely paranoid of SA nobles in their realm, which Thulsoma was so they didnt want to actually see it succeed, even though it would have been beneficial. After they combined Averoth was to join ad we would have been a large force in the north. It was my idea to found a federated united kingdom under the Summerdaliam crown with three kings in revolving leadership etc. it would have been cool and we could have offered a good bit of strength in that region. What happened instead was fragmenting and little wars and the Thulsomans left to Asylon where we thrived.
