Reaching the bottom of the tower, Eldrian sealed of the stairs with ice. The doors he also covered with ice, just to be on the safe side. While they were sealed with magic, anyone in the top control room could open them. Now, if they did, they would have to break through a few meters of ice.
With the room secured, Eldrian turned to the engraved array on the floor. 'Here, right?' Eldrian asked, finding a specific circle among the many paths in the array.
'Yes, that is where you perform the spell, but...'
'Yeah, I know.' Eldrian nodded. Even Myropsis wasn't able to arbitrarily learn the spell to access the hidden control rooms of magic towers. Which meant Eldrian hadn't learnt it either. And even if he knew the spell, he couldn't use it.