The warmth in The ice (Mycroft Holmes)

"Is she your goldfish?" Sherlock asked.
"No. She is more like a puffer fish than a goldfish" Mycroft said.
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"Let call my name" he hugged her waist and asked her.
She raised her eyes without understanding. She smiled and called "Mycroft"
He looked at her and said with a smile "I love you"
She laughed and continued to call "Mycroft"
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BUM
The building collapsed right before his eyes.
"No" Sherlock shouted.