The Germans were moving forward as the New Zealand cavalry pulled back. Enemy vehicles were located in the "hills north of Elasson". The Germans were taking "accurate fire". The Germans also had the problem of how to put their vehicles across river. Still, by later on 18 April, the Germans were able to ready for an attack.
Large groups of German dive bombers (forty to sixty) flew over. Only one dive bomber went after the 6th Brigade. The medium guns had fired all their ammunition and left the scene. Almost by accident, a large amount of ammunition was moved to the "pass". The 2/3rd Field Regiment did most of the firing. They were given good targets and fired some 6,500 rounds.
Late in the day, tanks were driving up a road and the leaders hit mines. The guns were firing into the mass of tanks and did damage. Infantry dismounted and moved towards the 24th Battalion. The field guns stayed in action until about 11:30pm, when they pulled back. They blew up culverts as they withdrew. By 3am, they were at Larisa. The 24th and 25th Battalions drove to Volos on the road. The 26th Battalion left Larisa by train.
It turns out that Brigadier Savige's units were in action that day. He had a rearguard "commanded by Lt-Col. King". They were located about five miles from Kalabaka. They drove to Zarkos "by dawn". By 11am, they were blowing up "sections of the road". Some of Savige's units crossed the Pinios River using a bridge that was still intact. By 11:30, three German aircraft bombed the bridge. The bridge was already ready to be demolished. The demolition charges were fired, perhaps by the bombing. Engineers made a ferry, and men crossed using it. This is based on the account in "Greece, Crete, and Syria" by Gavin Long.