Ao oni the blue demon

The mane six are in twilight's castle when all of a sudden, a message from the princess arrives. "Twilight!" Yells Spike. Twilight teleports downstairs "Yes, Spike?" she asks "Message from the princess." Says Spike. "Thank you spike" replies the alicorn and she starts to read it. She becomes nervous. "Everypony come here" she calls. The rest of the mane six arrive. "What is it?" they ask.

"The princess just sent me a message and it doesn't look good" Twilight responds. "Read it." She says. They gather around

Dear Princess Twilight,

The old mansion that we've been searching for has been found in the everfree forest, each month somepony goes in there but never comes out. I believe somepony or something is in there with them I want you and your friends to go in there along with spike since he can breathe fire and big macintosh since he's very strong  and both can protect you and your friends

Good luck

Signed, Princess Celestia

After they were done reading they all looked worried even pinkie pie. "We have to go ya'll, the princess told us to. Besides whatever is in there can't be that bad........right?" Said Applejack. "I don't know but we have to go" said Twilight. "Alright" they said uneasily. Twilight summoned big Mac to them and explained to him the situation. "Alright I'll go if the princess really needs us to. He said. "Do we need to? I might never see you ever again!" Said Spike. "We'll be fine" Twilight reassured him. "Is everyone ready she asked?" "Yes" they all said "then let's go" Twilight said and they were teleported to the mansion.