The Rock House

So i wanted to play an Minecraft Beta server, (Beta 1.7.3 to be exact) and i joined, no one else than me was there, until another minecraft player joined (let's call him Max) and we explored together for some reason i started having problems, i would ramdomly disconnect every 5 minutes i think, we found a village and stayed there until the night was over, and we continued our journey, i didn't know where Max was going so i followed him, he went to a big hill and there was a little rock house, i did a stair so he could go to the rock house, he went in the rock house, i was gonna follow him but the game disconnected, and so i re-joined i was on the spawn far away from were Max was, i started walking and not far away from the spawn Max said:

"Wait..."

"WHAT THE HECK"

and then the chat said "Max left the game." i was just close to the spawn, i checked the player list and there was no one else apart from me, i was too scared to go to the rock house and check what in the world was in there, i left and never came back on the server, however i found the ip again, and i was curious what was in that rock house, so i tried to join but it said "Failed to connect: Connection Refused" i am still curious and i don't know what happened...

its my first post here so what do you think?