So for level 13, first grab the fire scrol. Notice the fire golem is really slow but everything from this point on should be done quickly. Unlock the door and run in grab the earth scroll as he is walking away from you. Then jump down and melt the ice wall before he does. Next, run down flip the switch and turn to stone against the right wall of the mini-pit. The blob will walk over you and you can finally jump up and finish the level.
 "The Wizard of elemental magic"){kind=icon}