Massive sea monsters that reside in the spiritual water, they are not social creatures but can be protective and caring though will not show this through strong affection. It is more like a soft energy that let's you know. They can change their size but their true form is colossal. Once they know who their human is they will constantly look about for threats and make sure you are not in harms way. They can crush enemies and use water magic to ward off those who are negative. Kraken do not all get along with merfolk or oceanic entities so if you do have some of these races in your family specify and I can find one that will not conflict. Understand that like any being you will need abilities to sense them. Their art alignment can be grey to dark arts. As a side note some female krakens might take their young at some point with them to this world, for some of you this might be a good thing but if it makes you uncomfortable I suggest making that a house rule.