Coming out of the lunge after forcing Olof away, Idun steadied herself, her eyes fixed on Olof once more. Seeing the damage she had done to Olof, Idun lost focused, to an extend, not having meant to injure the man so. She snapped out of it when she saw him raising his hammer, which put her on edge, and seeing the sparks start to arc over the hammer, raised her shield at an angle where she could just see over it with her right eye. She would start to advance, while keeping an eye where Olof was aiming at
After Idun took a single step, the thunderbolt was fired. It impacted with the shield, oddly not conducting the electricity, sparing Idun from being fried. No scorch mark would be left where the bolt struck the shield, but the impact did generate another flash of light, as bright as it was when Olof first struck the shield.
The thunderous boom, however, left Idun stunned, standing wobbly on her feet, incapable of doing much more then keeping herself from falling over.