My PCs (Werewolves) are about to assault the haven of 5 vampires, to take some stuff from their library (yes, they could have asked… but you know, they’re werewolves).

The vampires are an isolated group of occultist investigators (2 Lasombra, 2 Brujah and 1 outcast Giovanni). They’re 300 years old, aprox. They all study Thaumaturgy and/or Necromancy.

The haven is located under the local stronghold of an isolated town in Russia.

What would be a reasonable rituals and defenses for this haven? This area is populated by werewolves, so it would make