Having to stand near the gap of the walled-up entrance of the Mountain, Saeril made sure that Kili got a good grip on her, before flying up to the top of the wall. Having to stand upon the stacked up rocks, which gave both dwarf and elf a good view of the battle before them, as well as the Orc army that stood before the entrance, while waiting for Azog's order to attack the fortress. However, as soon as that order was carried out, Bombur blew the horn of Erebor. 

The she-elf crouched down, before having to recall about that time where she said to Kili about her wonder for both of them to fly into battle. Well, that vision was about to come true. Flexing her battle-claws, she reached behind and sheathed her curved daggers. "For Erebor!", she shouted from her spot. "For the Sons of Durin!", she gave a battle cry, before spreading her wings and taking flight. A few seconds after she left her spot, Thorin and the rest of the company smashed the rocks at the entrance, and charging into battle. "To the King! To the King!"