give him hopes of victory, if he could compel the king to give battle
before his junction with the Saxons. But his present reliance was not
so much in his numerical superiority, as in the predictions of his
astrologer Seni, who had read in the stars that the good fortune of the
Swedish monarch would decline in the month of November. Besides,
between Naumburg and Weissenfels there was also a range of narrow
defiles, formed by a long mountainous ridge, and the river Saal, which
ran at their foot, along which the Swedes could not advance without
difficulty, and which might, with the assistance of a few troops, be
rendered almost impassable. If attacked there, the king would have no
choice but either to penetrate with great danger through the defiles, or
commence a laborious retreat through Thuringia, and to expose the
greater part of his army to a march through a desert country, deficient
in every necessary for their support. But the rapidity with which
Gustavus Adolphus had taken possession of Naumburg, disappointed this
plan, and it was now Wallenstein himself who awaited the attack.

But in this expectation he was disappointed; for the king, instead of
advancing to meet him at Weissenfels, made preparations for entrenching
himself near Naumburg, with the intention of awaiting there the
reinforcements which the Duke of Lunenburg was bringing up. Undecided
whether to advance against the king through the narrow passes between
Weissenfels and Naumburg, or to remain inactive in his camp, he called a
council of war, in order to have the opinion of his most experienced
generals. None of these thought it prudent to attack the king in his
advantageous position. On the other hand, the preparations which the
latter made to fortify his camp, plainly showed that it was not his
intention soon to abandon it. But the approach of winter rendered it
impossible to prolong the campaign, and by a continued encampment to
exhaust the strength of the army, already so much in need of repose.
All voices were in favour of immediately terminating the campaign: and,
the more so, as the important city of Cologne upon the Rhine was
threatened by the Dutch, while the progress of the enemy in Westphalia
and the Lower Rhine called for effective reinforcements in that quarter.
Wallenstein yielded to the weight of these arguments, and almost
convinced that, at this season, he had no reason to apprehend an attack
from the King, he put his troops into winter