The text plays on the word 'pair' which sounds like 'pare', suggesting a small amount, and 'Nanites' which sounds like 'knights', implying a play on the concept of small, possibly protective entities (nanites) with the idea of knights, who are also protectors. Additionally, 'Nanites' refers to nanotechnology, which is a play on the word 'virus' as both relate to small entities, but in different contexts.
No viruses detected . Must be a pair of Nanites .