He guessed the inside story of Voldemort II being defeated by him.

The day after he was abandoned by Voldemort One, Snape may have begun to think that the bloodline theory was gone.

There is absolutely no point in him continuing to work for Voldemort, because the crazy Voldemort No. 1 is now controlling Britain. After abandoning Snape, will he still be able to do it in the subsequent war against the Witch Level?

Ordering his men to keep their hands on Lily has an obvious answer.

Even if the sane Voldemort II can make a comeback, if Jon can defeat him once, then there is definitely the possibility of defeating him a second time.

So Snape reached a deal with Dumbledore at this time, and Dumbledore actually always saw Snape better than anyone else, so he knew what Snape was thinking about.

, and did not doubt his intentions.

Now the result of this transaction between the two is the bottle of golden gravel in Jon's hand.

Jon raised the glass bottle in the air, and the sunlight shone into the bottle, and the tiny golden particles reflected a faint light.

Jon didn't know what was in the bottle, but what he knew was that Snape's willingness to complete the deal with Dumbledore meant that he hoped more than anyone else that the Wizards could defeat Voldemort in the end.

The thing in the bottle was what he believed could be a real threat to Voldemort himself if it fell into Dumbledore's hands.

As for Snape's last piece of advice about Grindelwald...
Chapter completed!