Halo Riddle Thread

One of you are getting warmer.

UNSC Engineering Corps (ENGCORP)

Might need a drink Mango - you're looking pretty hot.

Nope. Repost:

Shrouded in awe
The guardian of the fleet
Yet not all guardians
Are remembered so vividly

Nope but still getting hotter.

No. No-one's warmer or colder.