"Colton’s expression held no mask to hide his emotion now."
This seemed unnecessarily difficult. I had to read it a couple of times to get the meaning. Why not, "Colton suddenly dropped his stoic mask" or "excited delight suddenly appeared on Colton's face", perhaps swiftly followed by horror as he realises that rather than rescuing him, Tyran is minutes away from a violent death.
>>the cold reality of his death sinking in and scarcely affecting him,
This seems a bit contradictory :) The use of the word 'cold' is indicative of an effect of something, as is 'sinking in'.
"Colton’s expression held no mask to hide his emotion now."
This seemed unnecessarily difficult. I had to read it a couple of times to get the meaning. Why not, "Colton suddenly dropped his stoic mask" or "excited delight suddenly appeared on Colton's face", perhaps swiftly followed by horror as he realises that rather than rescuing him, Tyran is minutes away from a violent death.