And still they **are** not aware what powers **lie** between their hands!

And still they **were** not aware what powers **lay** between their hands!

> B1 [ I + adv/prep, L ]  

>present participle lying  
past tense lay   
past participle lain 
 
> If something lies in a particular place, position, or direction, it is
> in that place, position, or direction

[Lie (Cambridge)][1]  
[Lie (Collins)][2]  
[English verb: to lie][3]

Present tense:
Singular: I lie, you lie, he/she/it lies.
Plural: we lie, you lie, they lie.

Past tense:
Singular: I lay, you lay, he/she/it lay.
Plural: we lay, you lay, they lay.


  [1]: https://dictionary.cambridge.org/dictionary/english/lie
  [2]: https://www.collinsdictionary.com/dictionary/english/lie
  [3]: https://www.writingenglish.com/cverbs/lie.htm