When our gang of heroes make it to the London Natural History Museum, Mojo said, "I must say that this museum looks grander than the one back in Townsville with the architecture." Rebecca said, "Yeah. Okay, we better find a way to get in and bust our creeps."

Musing for a moment, Ace turns casually to Deanna. "Uhm, pardon me, Dee, do you have a hairpin I could borrow, please?"

"Why, yes."Deanna reaches into her hair and removes one, which she then hands to her boyfriend. "Thanks, Dee." Ace replies politely. Deanna smiles. "You're quite welcome, Honey." Ace then deftly picks the lock and quietly opens the door, upon which the group traipse inside.

The group pass by a large King Arthur and the Knights of the Round Table exhibit, barely noticing the Nussbaum Brothers disguised as jesters. Mojo said, "Okay, it would be better if we split up around the exhibits here. I'll go with Rebecca, Foxy, and Roxi to the Egyptian exhibit. Powerpuff Girls, you go to the oriental exhibit with Toby. Deanna and Ace, you go with the Professor to the Roman exhibit as well as the Greek one. Snake, you and April check the Medieval along with the Renaissance exhibit. As for Arturo, Billy, and Grubber, you check out the war exhibit ranging from the American Revolution, the Napoleonic battles, and things with the Great War as well as World War II."

Everyone understood the plan, then Billy raised his hand and asked, "What is the Great War?"

Rebecca explained, "It's another word the English called World War I."

Billy said, "Oh, then why didn't Mojo say so?"

Mojo glares at Billy and asks, "Again, were you dropped on your head when you were a baby?"

Billy gave a gasp and asks happily, "Yeah, how did you know, Mojo?"

Mojo said with his hands up not amused, "Psychic powers."

As the group then disperse, Arturo whispers irritably to Billy, "Didn't you ever go to school, stupid?"

"Duh, yeah," Billy whispers in rely. "Problem is, I came out da same way."

The Powerpuffs then begin searching the museum, looking up and down throughout the exhibit. Suddenly, something catches Bubbles' eye. "Girls, girls, I found a clue!" she exclaims excitedly, upon which her sisters hover over with Toby following close behind. The blue Powerpuff motions toward a series of fingerprints on an ancient suit of armor. "Maybe this will help us find our crook."

"I mean no offense," Blossom replies. "But I don't think that the fingerprints will tell us anything, since we aren't the police."

"We could take it to them." Bubbles muses.

"We may need to keep searching." Buttercup notes.

"Okey-dokey." Bubbles replies, upon which the four set off again.

With Deanna, Ace, and the Professor, they looked at the artifacts of the Greek vases. The Professor looked at some of the Spartan armor from the Battle of Thermopile and said, "Nothing here, but this is amazing how 300 Spartans and King Leonidas fought the Persians with everything they've got until they gave up their lives in fighting for freedom."

Deanna said, "Yeah, really interesting." Looking at a figure of a Minotaur that almost resembled Taurus from their vacation in Greece, Deanna sees something in the figure's mouth and takes out a little piece of paper. She rolls it out and reads, "What did you expect to find, ducky?" Crumbling the note, she said, "Seriously?"

Ace got his hand stuck in a vase and said, "Hey, get this offa me!" Professor Utonium tugs on the vase and asks, "Did you find something, Ace?" Ace said, "I guess so or something's got me!" Grabbing the vase, Deanna and the professor give it a mighty pull and quickly free Ace. "Ohh, thanks so much fer savin' me, guys." he says gratefully. The two smile. "You're quite welcome."

Noticing a small bag in Ace's hand, Deanna inquires, "Say, what's that?" Ace replies, "I found it in da vase. Our mystery crook musta hid it in dere." Ace then hands Deanna the bag, upon which she opens it up, revealing a small cache of gold coins. A thoughtful look crosses her face. "We must be getting close. Perhaps there might be more clues further on."

"Good idea." the others reply as they then set off again.