After the vampires get to the Salve, you are told to fallback throughout the river and begin to fight from throughout RuneScape gold the river. Once across the river you need to fight and hold the Salve for 5 minutes while forces from Varrock come to encourage you.
The warriors in this minigame would be the backbone of this minigame. If you're a warrior you're on the frontlines. You'll be attacked by 50 level 30 witches first. If you hold off them you may be assaulted by 50 level 50 vampires. If you manage to hold off them you will be assaulted by 100 level 50 vampires. The final wave will probably possess Drakan himself (level 100) and 50 level 75 vampires.
Whenever you are overrun you are advised to fallback to the Salve and hold off the remaining witches until service comes. When you fall back you'll be assaulted by one wave of witches below you. For example: If you were on 50 level 50 vampires, then you will be attacked by 50 level 30 vampires. Do not worry, however, you are not the sole person to be fighting with the vampires. Whenever you are overrun though, all you will be told to fallback.
If you don't fallback you'll be killed by a mysterious force. But while you do fallback you will see all of the archers and monks on the opposite side of this river getting prepared to assist you endure for 5 minutes. Survive for 5 minutes after which you will OSRS buy gold be advised to get across the river, which means you win!