The Drew Crew gathered in the kitchen the next morning, preparing a quick breakfast before diving back into their investigation. The events of the previous night weighed heavily on their minds as they discussed Nancy's encounter with Amir Casey at the charred house.

Nancy recounted the details while sipping her coffee. "Amir Casey is a burn unit nurse. He claimed Bobby Nash came to him weeks ago, asking for information about burn victims. He gave me a flash drive with medical records and notes Bobby left with him."

Nick frowned. "But why call you to a charred house in the middle of the night? It sounds suspicious."

George nodded in agreement. "We need to keep Amir on our suspect list. He might be trying to throw us off."

Bess added, "And if he has connections to Derek McAllister, we need to be extra careful."

After breakfast, they decided to split up into teams again. Nancy, Bess, and George would visit Station 118 to talk to Athena Grant-Nash, while Nick and Ace stayed at the Airbnb to continue researching the case and reviewing the information from the flash drive.

As Nancy, Bess, and George arrived at Station 118, they were greeted by the bustling activity of firefighters and first responders. They found Athena in her office, her face a mask of grief and determination.

Nancy spoke gently. "Athena, we need to talk to you about the evidence we've found and the charred home I visited last night."

Athena's eyes widened. "What did you find, Nancy?"

Nancy explained, "The house I visited was severely damaged. I met a burn unit nurse named Amir Casey. He gave me a flash drive with information that might connect the fires to Derek McAllister. Do you know anything about Amir or McAllister?"

Athena's expression shifted from curiosity to horror. "The charred house you visited... that was our home. Bobby and I lived there before the fire." Her voice cracked, and tears welled up in her eyes.

Bess stepped forward, offering comfort. "Athena, we're so sorry. We didn't realize..."

Athena broke down, sobbing uncontrollably. "I have to excuse myself," she managed to say before leaving the room.

The trio exchanged worried glances. George whispered, "This might be our chance to look around for more clues."

They cautiously explored the station, searching for anything that could shed light on Bobby's investigation. In a filing cabinet in Bobby's old office, Nancy found a hidden compartment containing a folder marked "McAllister."

George rifled through the papers. "These look like Bobby's notes on McAllister's property acquisitions. There are maps, financial records, and photos of the fire scenes."

Bess pointed to a document. "Look at this. It's a letter from McAllister to a city official, pressuring them to approve his redevelopment plans."

As they continued to search, they heard footsteps approaching. Athena stood in the doorway, her face a mix of anger and betrayal. "What are you doing in here?"

George quickly explained, "Athena, we're trying to find out what happened to Bobby. We found these documents that might help us."

Nancy held up the folder. "We're on your side, Athena. We need to stop McAllister and whoever else is responsible."

Athena's anger gave way to resignation. "I know you're trying to help, but this is my life, my home. I need some space." Her voice quivered with emotion. "Please, just go."

They nodded and quietly left the station, feeling the weight of Athena's grief and their own frustration. Outside, George spoke first. "We're close, Nancy. Bobby's notes are the key."

Nancy agreed. "We need to analyze these documents and find the missing piece. Let's head back to the Airbnb and regroup with Nick and Ace."

Back at the Airbnb, Nick and Ace were deep in their research when Nancy, Bess, and George returned. They shared the folder and its contents, adding to the growing pile of evidence.

Ace scanned the documents. "Bobby was thorough. He tracked every move McAllister made. These letters and financial records show a clear pattern of arson followed by rapid property acquisition."

Nick added, "If we can find one more solid link between McAllister and the fires, we can take this to the authorities."

Bess pointed to a map. "What about this? Bobby marked several locations with dates. Maybe there's a connection between the fires and McAllister's business activities on those dates."

Nancy nodded. "Let's cross-reference these dates with the fire reports and McAllister's financial transactions. We need to find that link."

As they worked late into the night, the pieces of the puzzle began to come together. They discovered that each fire was followed by a suspiciously quick property sale to a shell company owned by McAllister. It was clear that McAllister had orchestrated the fires to drive down property values and then bought the land at a fraction of its worth.

Nancy's phone buzzed with a message from an anonymous number: "You're getting too close. Back off, or you'll regret it."

She showed the message to the group. George clenched her fists. "He's trying to scare us off. We can't stop now."

Nancy's resolve hardened. "We won't. We're going to see this through and bring McAllister to justice."

With renewed determination, the Drew Crew continued their investigation, knowing that the truth was within their reach and that they owed it to Bobby, Athena, and the people of Horseshoe Bay to uncover the full extent of McAllister's deceit.