The best reason for Dumbledore to trust Snape

[mimbeltonia]

No: HPFGUIDX 137695



Maybe this has already been suggested, but I did not find it. My 
apologies if it has been discussed to pieces already:

When Snape (apparently) repented and came to Dumbledore to join the 
order, Dumbledore could have decided to trust him not on his honest 
face and touching tale, but on basis of a carefully worded 
unbreakable vow to fight Voldemort as a double agent whatever it 
took. Thus, DD would know Snape was still faithful to their agreement 
simply because Snape was still alive. Regardless of Snape being evil 
or good, he would therefore be one of the most thrustworthy people 
around DD, simply because being anything else would kill him at the 
spot.

By taking a second vow, this time for Narcissa, Snape was in a tight 
corner, but I am still inclined to think that also the second vow was 
in agreement with DD's bigger plan. 

If this should be the case, somebody will have been the bonder 
between DD and Snape, and will know about Snape not being a traitor. 
Somebody who keeps his mouth shut at all cost, for the plan will fail 
if Voldemort's trust in Snape is wavering. Aberforth..? At least 
somebody that at the crucial moment towards the end of book 7 can 
convince Harry that Snape is his ally after all. 


Mimbeltonia