Dalnu was surprised when one arrow did hit her, although it didn't penetrate far beyond her armour. But to stay on the safe side, she did cast her shield spell, causing her dragon scales to manifest as well, and then threw a ray of frost towards the gnoll that shot her.

Spoiler: OOC round 2
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action 1: shield spell (+2 AC for 20)
action 2-3: ray of frost on P: attack (1d20+7)[22] for damage: (1d4+4)[7]

wounds: 9/12
AC: 20