Once the vampires get into the Salve, you're advised to fallback across the RuneScape gold river and start to fight from across the river. Once across the river you need to fight and hold the Salve for 5 minutes while forces from Varrock come to support you.
The warriors in this minigame are the backbone of the minigame. If you are a warrior you are on the frontlines. You'll be assaulted by 50 level 30 witches first. If you hold them off you may be attacked by 50 level 50 vampires. If you manage to hold off them you will be attacked by 100 level 50 vampires.
Whenever you are overrun you're advised to fallback to the Salve and hold off the remaining witches until service comes. When you fall back you will be attacked by one wave of witches under you. For example: If you're on 50 level 50 vampires, you will be attacked by 50 level 30 vampires. Don't worry, however, you aren't the sole person to be battling with the vampires. Whenever you are overrun though, all you will be advised to fallback.
If you do not fallback you will be killed by a mysterious force. But while you do fallback you will see all the archers and monks on the other side of the river getting ready to help you endure for 5 minutes. Wait for 5 minutes and then you will Cheap OSRS gold be told to get across the river, so you win!