Jus Throwin It Out There...

[Groovz]

Maybe theres something I've Missed Or I'm not working this out but correctly but Having Played every other Assassisn Crteed Game on console/PC I think I've noticed a Discrpancy with Assassins Creed 3 Liberation

Here Goes...

How can Connor and Aveline be Brother & Sister If...

Avelines Mother Is Black & French
Connors Mother Is Native American/Indian

Avelines Father Is White & French
Connors Father Is White and British

Now I'm no expert on Genealogy but I'm pretty sure In order to be a brother or sister of somebody at least one parent needs to be the same for both people.

The exact dialogue is "Travel North to New York and Make Contact with your Brother Connor"

[dhr09]

They are brother and sister in the assassin order, but not literally brother and sister.

[Specter]

They are brother and sister bound by the Assassin's Creed. Not actually siblings.