Weiryn listens to Ireena's tale for a while, then nods. He uncinches his belt, then pulls his dagger from it before tying it again. He sets it down in front of the lady Ireena, and smiles.
"This dagger was a gift upon graduating from acolyte status into full priesthood at the temple of Pharasma. I use it for rituals, funerals, and to cut the umbilical cord when helping deliver children into the world. It has been blessed by the High Priest that I regard as my mentor to disrupt the undead when called upon. You have but to point it at the undead in question and speak the command word disgregare, and a beam of pure life and light will harm the unholy beast. I have no need of it, as I mastered the spell long ago. Use it to protect yourself."
Setting his backpack on the ground, he rummages through it a moment before pulling out a small case. Opening the case, he pulls out a string of garlic and his spare wooden holy symbol of Pharasma. "Keep these with you, as well. Vampires are repulsed by garlic, and while it might not provide much protection, every little bit helps. And Pharasma cannot stand undead abominations, so perhaps she will deign to aid you while we are gone. I wish I could do more to help you, but I fear that, without staying here by your side, this is all I can truly offer until I have rested."