If you are a hunter and morra is blue and the 2 mothers are green, you may be having a hard time with this quest. Here's a helpful trick, and what i did: Charm one of the sveawolf mothers so you have one less green to deal with. Send your pet on the mother (Morra and the other mother will be most likely attacking the mother by now), and you can either pluck Morra with your arrows, or if you have high spear skill, go up and melee Morra. Was helpful for me. Be careful for rock crabs and other aggros near the shore.
Chubbs McChubby
16th level Kobold Hunter
Palomides