Description from Google Books:

Join The Bad Guys on their next escapade, coming to Netflix in 2023! In this novelization of the events of The Bad Guys holiday special, there's nothing The Bad Guys love more than Christmas morning - because while everyone is home opening presents, it's the perfect time to execute a city-wide holiday heist. It's the crew's favorite yearly tradition! But when Christmas is unexpectedly canceled, The Bad Guys must do the unthinkable: reignite the city's holiday spirit by giving instead of taking. Based on the bestselling series by Aaron Blabey!

Snippet from Google Books:

When Christmas is unexpectedly cancelled, thwarting their city-wide holiday heist, the Bad Guys must do the unthinkable: reignite the city's holiday spirit by giving instead of taking.