By the time you catch up, the two fillies are already mid-conversation below one of the windows.

“Well,” Diamond Tiara rolls the map back up again, “According to this, that’s the best way in. It offers the most cover.”
“So we don’t even need it anymore? Wasn’t this a waste of time?” Silver Spoon, completely aware that you’re there, points at you without looking. “It’s not like we had to wait for her.”
“It pays to be prepared.” Diamond Tiara tosses the map into the bushes. “Now help me up.”
“Excuse me? It’s my birthday-” Silver Spoon pauses to judge the position of the moon, “Technically today! You give me a boost!”
Diamond Tiara scoffs, “Well that’s not going to happen.” She points to you. “Give us a boost, and we’ll pull you in from inside.”

Can they really not make that jump? You’re positive you can. This could prove an ideal opportunity to leave those two behind. But, if they can make it inside, or even if they can’t, they’ll likely find a way to sabotage you. Or at least try.