Weird...a kinship potion? I'm sorry but with Snape I would to think (after he raged a bit) that he would immeidately think of a paternity potion, instead of just a kinship. Still I am very happy that you continued on with this story! I hope you update really soon!
Author's Response: Oh yes he thought of the 'paternity potion', as did DD mention it (obliquely), but the thing with that potion, as is hinted at, is that it is rather traumatic and a long process to make it, both for the brewer and both subjects, so it's a last resort option. 'Kinship' is a quick, practically immediate method to determine if further investigation is even needed, such as the 'parternity potion' down the track. So I think he's being a top rate Potions Master here and methodically working out the problem. He just got a little caught up in the results and the shock for a moment, that's all. He's only human after all. ;)
Thanks for your review! I'm working on the next, it's coming together...
misundersnape...