This is really interesting. This is the one map we have drawn at a different angle, and
it implies that Corona is actually northwest of the Spire, rather than southwest, and that that was their direction of travel all along.
However
the implication here is that the break in the wall (just outside of Old Corona) faced west, rather than east.
(Also, I know the Doylist reason is because "Race to the Spire" was developed well after "Keeper of the Spire" was written, but there's no in-universe reason why they shouldn't have encountered Kresten Loch before.)












