Imras you take a moment to look at th-WAIT! you feel a draft of wind and brush of cold air when you step close to one of the Ruined statues, Playing a hunch to step to another one close to the first and feel the same thing. Each ruin seems to have its own localized Weather within 5 feet of it. This is.....very strange but it does solve why these things look weather worn.

So each ruin has its own Localized weather that surrounds the ruin within 5 feet, You have encountered Wind and Cold. 

Nice nat 20 Imras, Making me have to spill the beans on the Ruins already.

"These things each have their own weather pattern!" Imras exclaims

(Definitely a lucky roll)

"Well this is odd." Felicity will close her eyes and concentrate. "I'm going to spend some time casting a spell, hopefully this will help us sort out this place." And she will begin casting Detect Magic as a ritual. It will take a little over 10 minutes so the others might figure some things out before she's done.

“When I entered the room, a voice spoke to me. It said,

“An Hour pass the time, The Key is in the rhyme. Voice of melody and tune is how one escapes this room, The time lies in ruin, Break threw the stone, Find the hidden tune and let the melody flow."  

Atticus will tell the others of the voice that spoke to me 

Everyone in Atticus's group now know the Riddle. I'll say that Imras's group couldn't hear that from the other side of the room.

Felicity, There is definitely magic in this room. You feel numerous magic points scattered threw out the 30 foot radius. It's school is a mix between Conjuration and Evocation.

Hawk growled as he entered the room. He actually wanted the chest. He cared nothing for potential treasure. He wanted the treasure now. Actually he wanted out this cave now. These ordeals, they were annoying. He had a street to clean up, and a city to return to. Instead he was playing the play thing for whater mage built this place. The worst part was that he had no control over anything. Even if he wanted to leave he could not. He was a puppet on strings. 

"A riddle? Hmm, I hate riddles", complained Hawk as he began to think on it. His brain already started to itch. Hawk was not stupid, but he was still a Orc. Riddles were not his strong suit. He could only prey that the others figured out what was going on. 

Felicity will blink as if in bright sunlight. "Well there is a lot of magic in here. Be careful, conjuration and evocation can be very dangerous schools of magic." She will walk over to a different part of the ruins from Imras and make an examination.

Investigation: 23   (Let me know if you want a different kind of roll for this)

Felicity as you approach one of the ruins to feel a sudden rise in temperature, its hot and dry next to this ruin like standing in the middle of a desert during mid-day.

Looking over the Ruin, which is a worn statue you find a simple Phrase at the bottom of it, It actually looks like it is new to the statue. While the stone is worn threw time and weather, the Letters look freshly carved.. Luckily you recognize the language, It is Sylvan.

"The Sundial holds the Tune." Is all it says.

Atticus will check the next statue next to Felicity

Atticus walks to another statue that has been completely broken off from the neck. Looking around the base of the statue you do find freshly carved words, but you cannot read them. The same Dry heat emanating from within 5 feet of it.

Felicity and Atticus, i need you both to make a Constitution saving throw.

Atticus

Con save: 13

Con Save for Felicity: 13

Tazla looking at everyone examine the runes catches on it must be a puzzle of some sort. She sighs , not completly absent of mind but without knowing the riddle it seems pointless. (Is there a way to cross the room? If there is shel begin to cross it to see what the other group knows if not shel just hang by hawks and keep an eye out on the room) 

Also, when the others get close to me, I will repeat the message that I heard in my head. 

“An Hour pass the time, The Key is in the rhyme. Voice of melody and tune is how one escapes this room, The time lies in ruin, Break threw the stone, Find the hidden tune and let the melody flow."  

Felicity and Atticus you both start to sweat as the heat near these statues become Unbearable. (In the low 100s for our friends who do not use Celcius) But you both steel your resolve and push out of its radius, Sweating and breathing hard but no exhausted from the heat.

Yes there is a clear path to them, as you begin to walk towards them there is a sudden shift in the floor at the half way point. A series of metal spears shoot up from previously unseen holes in the ground. 

Tazla, make a Dexterity saving throw.

Felicity will wipe the sweat from her brow. "Well that was unpleasant. Hmm... 'The sundial holds the tune'..."  She'll look around the room, not approaching any of the ruins too closely after that nasty heatwave to see if she spots a sundial.

Perception (in case the sundial isn't in an obvious location) : 18

Felicity you look around the area but don't see anything that resembles a sundial you are aware of. There are pieces of broken arch ways, walls statues an obelisk in the center of the room....wait. That obelisk looks odd. 

Stanford will think for a moment on the riddle, after looking over to the others looking at statues he will do the same to a different one hoping to find an answer. 

(Coulda sworn I posted last night that I would approach further ruins to see what other weather pattners showed up, but don't see it now.  Instead...)

Imras inspects the first ruin he approached, trying to discern if he can see any markings or other signs on it that would relate to the wind.

Felicity will make her way over to the obelisk, carefully stepping around other bits of ruins.