Feb 19 - 20, 751: The next few days were spent preparing their forces to attack the besieging force at Lourdes. They planned to march through a pass in the Pyrenees in order to attack Lourdes from the south (which would be an unexpected direction form which there approach would be obscured by mountains). Wulf had a conversation with Marcatrude, Theodoric’s new wife in which she warned him of his ambitions. Marcatrude did not seem surprised.
On the 20th, Ansovald arrived with his men, bringing their numbers to about 300 cavalry and a 100 man unit of infantry. Humbert also returned with a scouting report. The castle at Lourdes (Count Michael’s home) had already fallen and Count Michael was presumed dead. The rest of the army had begun to assault the walls of the city of Bigorra (a heavily fortified class IV city, Count Michael’s seat - formerly a Roman urbs). The defenders seemed to be holding out for now. Theodoric instructed Humbert to return and use the bandit band (same ones that kidnapped Theudomer) in order to eliminate all of the Saracen’s lookouts.
Theodoric and Wulf immediately departed Montrejeau with their force. They still used the southern route in order to take the besieging force by surprise. Along the way they stopped at a small baronial fortress held by Baron Ragnachar in the Pyrenees before stopping at Lourdes to investigate the site of the battlefield. They found Count Michael’s decapitated corpse which they sent back to Ragnachar for safe keeping. The army set up camp near the ruined castle while Theodoric, Wulf, Bertulf, and their henchmen rode ahead to a hill that overlooked the city of Bigorra. Night was falling when they arrived and so Theodoric ordered some of his men to erect a wooden cross on a hill to the east (the Frankish force was to the south and planned to attack from the west). He then ordered the cross to be set alight in order to serve as a signal to the defenders of the city. The Frankish commanders planned their assault that would come the next morning.
During this time, Tariq had slipped away and mounted his flying carpet in order to get a better view of the besieging force. When he saw the burning cross, he got a brilliant idea, so he slipped into Bigorra itself. First he left a note on the cathedral door to let the defenders know that a Frankish force was preparing to attack. Then he stole some cloth and some oil and a torch. He tore the fabric and crumpled it into balls which he dipped into the oil. He then took off again on his flying carpet and proceeded to light these balls on fire and drop them onto the Saracen siege camp (Recall that these are the wrong kind of Saracens. Tariq is loyal to the Abassid Caliphate while the Iberian is currently in open rebellion against that regime).
The fire ripped through the Saracen camps, burning tents, siege weapons, pitch soaked ammunition, and spooking horses.
I should point out that from the perspective of everybody who wasn’t Tariq, fire was literally falling out of the sky onto the Saracen camp. While Theodoric knew that the burning cross was his signal, neither the defenders of the city nor the besieging force were aware of that fact. Theodoric ordered his men up to the top of the hill to watch and had Ingomer (his new cleric) hold mass.
Hoping that their fire-fighting efforts would lead the Saracen force to sleep in, Theodoric, Wulf, and Bertulf gathered their forces to the west before dawn. They masked their movements using a chain of hills and prepared to use their cavalry to charge through a gap in the hills and across a 3 mile field to sow even more discord in the siege camp. Another baron, Baron Chlodomer had arrived in the night with 50 infantry. The plan was to position the infantry in the gap in order to cover their retreat. While the Frankish force was outnumbered 4:1 by the western siege camp, Theodoric hoped that they would pursue his cavalry back towards the gap in poor order where his infantry could ambush them.
As the Frankish commanders lined their units up for battle, they noticed a great deal of movement within the siege camps.