History Literature / RipleysBureauOfInvestigation

** Castle Warden in "Haunted Hotel" also counts as it doubles as one of Robert Ripley's museums, mentioned to have things like an animatronic T-Rex. Even outside of the museum section, there's interesting curios, like a painting made out of ants and a fortune teller machine.

** Castle Warden in "Haunted Hotel" also counts as it doubles as one of Robert Ripley's museums, mentioned to have things like an animatronic T-Rex.

* BigFancyHouse: The school/mansion.

* HellHotel: "Haunted Hotel" is called that for a reason. Potentially, at least.

* TravelingAtTheSpeedOfPlot: Subverted. The novels take an accurate note of how long it takes/the varied methods to get from the East Coast of America, where BION Island is, to wherever the agents need to go. Even when using an amphibious car to get to Greece.

* SarcasticClapping: Max's reaction to Dr Maxwell excitedly playing a 'virtual karaoke machine' he made, aka a Guitar Hero-esque system with holograms.

* AgentScully: Kate. She doesn't even believe in Kobe's [[Main/PsychicPowers psychic abilities]]. Although she does believe in the possibility of Atlantis existing as a lost city.

* TheBigBoard: The RBI base has a large, almost wall sized, view screen for mission briefings, to provide visual information, like witnesses' spur-of-the-moment video evidence of what they're investigating.

** Normally when Mr Cain sends a [[Main/SchoolClubFront 'Museum Club']] text message to summon agents for a mission briefing, he would add a [[Main/TeamDad dad joke]]/[[Main/PungeonMaster pun]]. He didn't in the text message for the mission in "Haunted Hotel". Due to the importance and seriousness of the mission (employees of the upcoming Ripley hotel being endangered by hauntings), the text message is just 'Urgent - come at once!'. Even in the briefing, the usual five minutes of mingling time are cut short and the briefing immediately starts, with Mr Cain being [[Main/SeriousBusiness all business]].

** Normally when Mr Cain sends a [[Main/SchoolClubFront 'Museum Club']] text message to summon agents for a mission briefing, he would add a [[Main/TeamDad dad joke]]/[[Main/PungeonMaster pun]]. He didn't in the text message for the mission in "Haunted Hotel". Due to the importance and seriousness of the mission (employees of the upcoming Ripley hotel being endangered by hauntings), the text message is just 'Urgent - come at once!'. Even in the briefing, the usual five minutes of mingling time are cut and the briefing immediately starts, with Mr Cain being [[Main/SeriousBusiness all business]].

* AsianAirhead: Li is an averted version of Type Two. She is sweet, pretty, rich, fashionable, and Chinese. But beside from being a touch superstitious, [[Main/AsianAndNerdy she is not at all dumb. She is even noted as a musical prodigy.]]

* OOCIsSeriousBusiness: In the beginning of "Haunted Hotel", Max was glum because he had to wait a while to visit Jack in Australia, so much so that when the perfect opportunity came to prank Mr Clarkson (pulling a thread on his jumpsuit to ensure they're are torn and fall down to his ankles), Max doesn't bother. Li and Kate were stunned by his out-of-character behaviour, even Kate was hoping he would take the opportunity to cheer himself up.

* BigBrotherInstinct: Alek. He is older than at least four of the other agents and is the tallest/strongest, he is protective of his teammates and has saved them multiple times thanks to his skills and athleticism. Such as saving Max and Zia from a giant robot dragon with back flips, saving Li from a shark, and saving Kate from falling down a crevasse by diving down after her then free-climbing its sheer sides. He almost dived into a boiling hot lake to retrieve a replacement boat (to save Jack, a young civilian girl, and her dog from being stuck in the lake), until Jack reminded him that if the boat managed to melt the bottom of the boat, then it could hurt or kill him. He tries to keep an eye on agents he feels could end up in danger easily.

* SomethingCompletelyDifferent: Usually the formula for a novel in the series is that three agents are briefed at Ripley High and go on a mission. Plus, each book is one mission after another. It was changed just for "Danger Underground" and "Haunted Hotel", both missions in each book happen at the same time, the whole team on different missions. "Danger Underground" never even involves Ripley High once. The book begins with Jack, on a holiday and back in his hometown in Australia, just being informed that Max won't be able to visit because he's going on a mission with Kate and Li, the one that occurs in the next book "Haunted Hotel". Instead of being briefed in the RBI's base, Jack is briefed via his R-Phone's video link by Mr Cain. Because the initial mission is a two-hours drive away from Jack and is simply about a three-headed snake, Mr Cain only sends one agent at first, Alek. But once the escalating heat-related incidents happen, Mr Cain sends over the remaining agents, Zia and Kobe, increasing the number of members of the team to four.

* HazmatSuits: What Jack, Alek, Zia, and Kobe essentially wore when they investigated the burning underground coal mines.

* MayorPain: Type Two, concerning Mayor Reynolds in "Danger Underground". He downplayed all the news about the sink holes, monoxide poisoning, and fiery disasters, and viewed them as unrelated to each other. Even when the agents told him about the cause of the incidents, the underground coal mines being on fire, he dismissed them as overreacting kids because he was certain the coal mines have been emptied. He only got the town Copper Creek to evacuate once the sink holes started destroying the town centre, a little too late. He showed he was more ignorant than wicked when he almost sacrificed himself saving Zia and a little girl, he leapt off the team's Quad Buggy as it was soaring over a widening crevasse to ensure his weight doesn't cause the vehicle (with Zia driving and the little girl inside) to not reach the safe side. Almost, as in Alek and Kobe pulled him before he could fall all the way down. [[Main/HeelRealization He realised he was wrong after going through the town's destruction and apologises]].