It's always hard, when introducing readers to a new world/set of rules, not to lay it all out manual-style in the opening chapters but make sure to put the action and the characters at the front. If people don't become invested in them and in the story, the world in which it's set will become a burden.

I was fourteen, watching 'The Princess Bride' for the 254321th time, captivated by Wesley and Inigo dueling on the cliff-top. I had never held a sword in my life, but I phoned my mum and said, 'I want to learn to fence!'

I'd grown up an athletic child, a competitive soccer player since age 4, with stints ranging from months to years in gymnastics, softball, volleyball.

V. E. Schwab Quotes