Nothing But Trouble

 is the first in a series of junior graphic novels based on Phineas and Ferb, released on June 15, 2010. It is an adaptation of the episodes "Day of the Living Gelatin" and "Elementary My Dear Stacy".

Part 1
Candace's gelatin party inspires Phineas and Ferb to create the biggest gelatin mold ever in Isabella's swimming pool. Doofenshmirtz invites Perry the Platypus over for tea in order to convert him to an evil ally, "one way or another". Thanks to Doofenshmirtz's invention, he accidentally turns the gelatin into an evil monster.

Part 2
While in London, Candace and Stacy emulate Sherlock Holmes and Dr. Watson, while trying to bust Phineas and Ferb. Meanwhile, Perry must team up with British agent Double-0 0 in order to stop Dr. Doofenshmirtz from moving Big Ben to the Tri-State Area.

Title Description
In this exciting junior graphic novel, the boys create a swimming pool full of gelatin and have loads of fun.until it's accidentally hit with Dr. Doofenshmirtz's latest device, a ray designed to turn everything evil! Phineas and Ferb must find a way to stop the giant gelatin monster and save Candace. Then, the kids head off to England to visit their grandparents, where Candace uses the detective methods of Sherlock Holmes to bust the boys. Elsewhere, Agent P is forced to partner with Agent Double 00, a snooty spy who has little respect for our hero.