"Well, first problem is actually finding the entrance I'd say!" He slowly begins to circle around the tower, occasionally tapping with his foot against the base of it. It doesn't take long before he finds a difference in architecture. His feet hits nothing. Really nothing this time. "The normal base of the tower stops here." He takes a step forward, with his hands in front of him. There is no resistance for at least half a meter. His hands scour the surface of , what he thinks is, the door until they find what seems to be a valve. 

"I think I got something here! Alright... The next thing might look rather silly." His hands grip around the valve and he starts to turn it with all his might. It was a tough one that hadn't been used in quite a while. Or Chaos Cults just liked tough doors. That could be the case as well. 
To anyone watching, Aidan may seem like a mime or something. All of a sudden the valve gives away, making it a lot easier to turn. Aidan gives it a pull and the door slides open to the outside, suddenly revealing an interior amidst the 'nothing'. "Well, this is definitely not weird." Looking at Val and back to the interior he grins. "Ladies first I'd say." He makes a formal gesture and bows jokingly.