Too late
When the marauding demons reached them and crushed against it, that seemingly light shield managed to stop their momentum. It was successful! The barrier was working. The next second, a powerful twin force of merging wind and fire, that belonged to Alexander, hit into the back of the group of demons that were pushing against Lilith's light shield and were mercilessly burned and blew the demons apart. Suddenly seeing that change in tides gave a little more cheer in their little hearts as there seemed to be some hope and light at the end of this very dark tunnel which had appeared to have been set in stone.
The few demons who were at the periphery that were blown further away by the blast managed to land on the ground, lightly singed by Alex's fire storm, now were in a feverish exchange against Lucas and Kyle who were expecting them on the ground.