Zeus takes a few steps towards the door, examining it visually for any crevasses or seams that might be hidden mechanisms. How to get it open...?
He speaks up after a moment in a mechanical tenor, "Miss Moonsong, do these markings mean anything to you? If it's trapped, I may be able to disarm it, but I'm unfortunately rather bland when it comes to magical traps."

Spoiler
Show

Knowledge Dungeoneering to see if I can think of the proper first procedure: (1d20+6)[14]
Search, just visually so far, but to see if I can find any sign of traps or hidden mechanisms: (1d20+3)[15]
Spot (if it's more applicable than search): (1d20+6)[15]