Some of the missiles bounce off teh lizards' thick hides, but Rhod and Franklin manage to kill one beast. The other is now aware, and starts to move towards the party
The party can risk winning initiative and getting off more missiles, but then Rhod and one of the hobbits will get meleed if the lizard survives. If they lose initiative, they will not get any missile fire off. Or you could have Rhod and Aldbane charge the last lizard
MECHANICS
Rhod, bow, rolls 16 - hits for 5 damage
Franklin, sling, rolls 8 - hits for 4 damage, kiling a lizard
Balbo, bow rolls 5 - miss
Drogo, bow, rolls 7 - miss
Maloof, dagger, rolls 8 - miss