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Raise Dead and Resurrection both only have a single target. So you'd need two scrolls/spells for two dead characters.
Considering the amount of money you are likely to have in Easthaven and the cost of Raise Dead scrolls, I think you should look at the never-fail, cheap resurrection option: the reload.
Seriously, all (or the large majority) of us do this. Save before and after battles and areas, and you will be much happier. You also won't be able to afford many Raise Dead scrolls in the early part of the game, and it's more productive to spend your money on other things - mage spells, magical items, and armor.