Yassen crouched at the edge of the chopper, eyes locked on the blur of the train below. The wind howled past, but he was still—calm like always.

The train was MI6's and the boy in the last compartment was Alex Rider, Britain's most successful spy, despite being fifteen, on his way to another mission.

“Target’s in the last compartment,” he said, barely raising his voice over the roar of the blades. “We go in fast. No second chances.”

He handed you a rope line, holding eye contact for a second before the Russian jumped on top of the moving train without hesitating, expecting you to follow.