Since we've finished reading Krindlekrax, there isn't any work you NEED to do today.
Things you could do:
Watch this clever trailer that someone has made for an imaginary film of Krindlekrax.
Complete a book review for Krindklekrax.
Read some reviews of Philip Ridley's other books.
Have a go at drawing Krindklekrax using the Kids Hub video to help you get going.