It turns out it's not hard to spot Carly and Papyrus, as Sans gets into the air again. Papyrus is a gleaming spot of copper, and Carly is Carly. Her wings are brighter than his, and he's a friggin angel.

He teleports into the air above them, but is immediately met with the serious problem of falling and collapsing debris. He can see that Papyrus is floating with blue magic, and Carly is shakily flying, but if they don't move faster there's a chance they'll get crushed. Naturally, he follows Papyrus's lead.

Summoning up his blue magic, he grabs hold of the various pieces of debris, lifting them away from the falling pair and aiming them at a new trajectory.

Ping! Swoosh...!

Each piece of debris sails towards the Mother herself, cracking against her chassis.