where is it? I'm trying to make Crom Fayer, and I have everything else.

WELCOME HERE, MATE!
First, remember to put a spoiler alert on the start in such message.
SPOILER
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The hammer of thunderbolt is located in the last room with the Mind Flayers in the temple sewers.

[ 11-09-2001: Message edited by: Sir Exxon ]</p>

How do you get into that room?!?! i've never gotten in and i wanna know how... :(

Spoiler
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You get the sewer key from Tazok in Windspear Hills.