"Let's play pretend." Eurus tells Eleanor when she comes over again. The girl nods as her brother joins Sherlock by the river.
Eurus takes the plane in hand and begins immediately before Eleanor can argue.
"Mummy? Wake up! Why won't you wake up mummy?!" Eleanor looks over at the girl panicked by her tone. She reaches out to the other girl, holding the plane aloft and standing on the tips of her toes.
"Eurus? Are you okay?" Eurus' eyes remain closed.
"We're playing the game." She insists. Eleanor nods unsurely, stepping away from her.
There is a pause and the curly haired girl continues.
"Wake up Mummy! Wake up!" Her voice climbs in fear as she swings the plane through the air. Eleanor watches as the girl freezes again, lips wobbling as if she's about to cry.
"Help me somebody! I'm all alone and I'm on a plane and it's going down! Help me please!" She shouts and begins to scream. Eleanor jumps, falling onto her bum.
"Are you okay Eurus? Are you hurt? What's the matter?" Eurus' mother hurries outside as Eleanor stands fretfully beside the odd girl.
"Are you okay dear? What-"
"We're playing the game mother." Says the small girl in her usual voice, void of emotion. A few seconds later her face crumples again and she lets out a sob which is entirely incompatible with her mood only seconds before. Eleanor's face lights up as the disparity in moods reveals to her that it's an act.
"Help me! Help me someone! The plane's going to crash and I'm all alone and everyone's asleep and I don't know what to do!" Shouts Eurus. Eleanor stares at Eurus in confusion, as if thinking then grins and starts screeching too, pointing at the sky.
"There's a plane coming and it's going to crash and kill us all! Someone help us please! I don't want to die!" She screams and the sound is much happier than Eurus' wail of pure fear but that doesn't dissuade her.
Eurus certainly doesn't notice the difference. A grin flashes onto her face before it's eaten by horror.
"It falling faster and faster and I can't stop it! Help me! Help me!" Both girls scream.
"Please I don't want to die!" Eleanor cowers in fear, crouched on the floor. She sees her brother look over in irritation and lets a grin touch her lips at her revenge.
"Someone stop this plane from crashing! I don't want to die!" She screeches louder for her brother's benefit.
The two girls run alongside the river, Eurus with arms outstretched and Eleanor running from her.
"I'm crashing! I'm crashing! Somebody please help me!" She begs, kicking up water.
"I don't want to die!" Yells Eleanor, giggling. She cries out as Eurus collides with her, eyes closed. Eurus jolts, looking up in shock, face pale.
Both are soaking wet.
Eleanor starts to laugh, red hair clinging to her face. She pushes it back with small hands.
"You crashed into the city Eurus!" She giggles, grinning at the other girl.
Eurus looks at her, truly confusedly for the first time in her life. Her lips move upwards by themselves.
"I crashed." She says plainly. Her hair hangs from the sides of her head, fringe over her eyes. She brushes it away.
"The city is burning." She states, lips acting of their own accord again and momentarily becoming a smile.
Eurus' mother checks they are both okay before retreating to the porch to let the children play. Her husband smiles, joining her. Mycroft looks at Eurus speculatively.