How do you get in the death school on wizard101?

you have to go behind the waterfall in rainbow bridge theres a door to nightside the realm of the death school tree and tower forst you have to get the key from malistare it is called a skeleton key you start the quest sequence in firecat alley at the end you can go to the death school the tree is the only one aside from the balance tree that gives cards well my name is blaine darkthief usually hanging around trinton im not a mem but hope to be one lv10 c u around