Potions in HBP

[Angela]

No: HPFGUIDX 138288

This is the 1st post I've made here, though I have been reading the 
board for months now.  What should we make of the 4 potions mentioned 
in the 1st potions lesson.  Potions is key to HBP just as DADA was 
important to OOTP.  In the 1st lesson Slughorn placed 3 potions in 
cauldrons - Veritaserum, Love potion, and Polyjuice potion.  Then Harry won Felix Felicitas.  I see the significance of the Love potion (a constant theme in HBP), the Polyjuice potion (things and people are not what they seem and Malfoy has Crabbe and Goyle take this), Felix 
enables Harry to be successful in his task (as well as saves his 
friends on that fateful night), but what about the Veritaserum?  Any 
thoughts on this?  Clearly we are to sift through events to discover 
the truth, but about what?  JKR always brings up new and important 
tools, spells, etc... early in the book and works it through the story.

Angie