Oooooh, the strange goings-on at Blair House are getting creepier by the minute.

Our story started with Shane Jackson, 13, and his sister, Portia, 11, delivering a package to Mr. Blair. When he opened it, Mr. Blair's face turned grim and he pronounced it "very bad news."

To catch up with the story so far, go to and click on "Summer Book Club." This week's installment was chosen from more than 90 entries submitted by KidsPost readers:

"Bad news?" asked Shane. Mr. Blair nodded.

Portia peered into the box. Inside was a clock. There was also a note: "As the clock ticks, your time grows short," read Portia. "What's going on, Mr. B.?" asked Shane.

Mr. Blair sighed and said, "Children, I need your help."

-- Madelyn Paquette, 10, McLean

Why is the clock ticking away Mr. Blair's life? And how can Shane and Portia help? What happens next? Find out next Wednesday when KidsPost publishes the fourth installment of the summer mystery. What twists and turns the plot takes are up to you.

HERE ARE THE RULES: Your submission can be no more than 50 words. (Yes, "the" counts as a word!) We can edit your entry. The deadline is 9 a.m. Tuesday. You can enter by e-mailing

(put "Mystery" in the subject line) or faxing us at 202-496-3780. To be considered, an entry must include your name, age, address and phone number. If we publish your entry, we'll send you a KidsPost T-shirt.