Dognapping

From the casebook of J. P. Laneerws, Master Detective. Solve a Mystery. Book 3. By Marian Lee. 1982

Jeffrey P. Landers was in his office in the garage. Suddenly the door banged open and Jimmy Franklin rushed in.
“J.P., J.P.” cried Jimmy, “I need your help.”
“Sure,” said J.P., putting on his detective hat.
“What’s the problem?”
“It’s Snookers he’s gone,” said Jimmy.
“I’m sorry,” said J.P. “I never take cases involving lost pets. That’s the Humane Society’s
“You don’t understand,” cried Jimmy. “He’s not lost. He’s been dognapped.”
“Wow,” said J.P. “I’ll take the case. Now give me the facts.” J.P. took out his notebook and pen.
“Yesterday around five, I was playing with Snookers in the backyard,” said Jimmy. “Then I went in to get his supper. When I came back out he was gone and a ransom note was tacked to his doghouse.”
“What did the note say?” asked J.P.
“I was to leave two dozen chocolate chip cookies near the fountain in the park,” said Jimmy.
“Did you do it?” asked J.P.
“Of course,” said Jimmy. “I didn’t want anything to happen to my Snookers”
“Then what’s the problem?” asked J.P. “Didn’t you get Snookers back?”
“No,” cried Jimmy. “And this morning I found another note but I can’t read it. It must be in some kind of foreign language.” Jimmy handed J.P. the note.
J.P. took out his magnifying glass and studied the note for a long time. “This looks like the work of Bert the Bully,” said J.P. “Bert hates dogs but loves chocolate chip cookies.”