Bolg and the rest of the Orcs, as well as the bats from Gundabad, happened to arrive upon Ravenhill, as they start to attack Bilbo, Thorin, and the company. "Slay them all!", he announced to the fiendish creatures. At the same time, the three elves arrived. Legolas, having to spot one of the bats fly above them, he jumped upon it, letting it fly over to one of the top towers. 

Saeril was on the upper level, killing anything that got in her way; searching for Kili, as fast as she could, her excellent eyesight managed to catch the two female elves in the distance. "Find him!", she shouted out to them, desperately, before blocking an attack from one of the Orcs. "Find Kili!", then she slashed at it's the throat. "Hurry!", she said once more before disappearing back into the tower, continuing her search.