Today in the Watership Down Book Chat conversation we discussed a few books. Jennifer already posted links to a couple. Here's the one I'm reading about Harry Potter. "How Harry Cast His Spell" by John Granger

https://www.amazon.com/John-Granger/dp/1414321880/ref=sr_1_1?dchild=1&keywords=harry+casts+a+spell&qid=1590859988&sr=8-1