I ask you

English diary

When I was reading a English novel, I found the sentence, “I ask you”.

I didn’t know the meaning.

My dictionary says that it means “what a surprise”.

But it doesn’t seem to be pure surprise but ironic.

In the story, a clever girl made a secret group and found a place where nobody couldn’t eavesdrop.

However, an adult man guessed that place and said “I ask you” with grinning.

It’s simple sentence, but it’s so interesting.