I spotted this one just in time.
The Wicked Wildfire Readathon started today (20th June) and finishes on the 24th of June.
You can participate in as many or as few days as you like, but I'm going to go for them all.
My goal, as usual, is to read for more than 30 minutes a day (or more than 2 hours over the 4 days).
Are you participating as well?
Let me know in the comments.