They were tired and wounded, waiting for Soraka to replenish her mana and heal them, when they noticed that there were only four enemy bodies lying on the battlefield.
Anivia the Cryophoenix wasn't dead yet, they knew she was a terrible foe and killing her proved to be difficult task, however, after that long battle she was possibly too weak to retaliate.
And then it happened, Soraka slowly turned back and said happily: "I found a baby"
And then everything was lost.
Soraka, you shouldn't have skipped Mythology 101!