The implication was clear.

“That was ten days after Lovette and Gamble disappeared from the Speedway. How did Poteat know it was Lovette?”

“He’d seen a photo on a flyer. Said the tats and bald head caught his attention.”

“Was Poteat considered credible?”

“The task force thought so. According to Eddie, Poteat’s statement played heavy into the conclusion that Lovette and Gamble took off.”

“What about Cindi?” I asked.

“What about her?”

“Did Poteat see her at the airport with Lovette?”

“Apparently he wasn’t so sure. But here’s the thing.”

Slidell flipped a wave at the guard as we exited the gates. The young man watched us roll through but didn’t wave back.

“At the back of the notebook, Eddie had a page marked with big question marks.”

“Meaning?”

“Meaning he had questions.” Slidell reached out and smacked the AC control with the heel of one hand.

Easy, Brennan.

“Questions about Poteat?” I asked oh-so-precisely.

“Who the hell knows? For that entry, he used one of his codes. Means nothing to me.” Slidell yanked his spiral from a shirt pocket and tossed it to me. “I copied the stuff into there.”

ME/SC 2X13G-529 OTP FU

Wi-Fr 6–8

When hurried or feeling the need for discretion, Rinaldi used a form of shorthand known only to him. The cryptic notations were typical.

“Maine and South Carolina?” I guessed, looking at the longer entry.

Slidell shrugged.

I played with the alphanumeric combo. “Could it be a license plate?”

“I’ll run it.”

“FU probably means follow up.”

I played some more. Came up blank.

“Can I have this?”

“Yeah, sure.”

I tore the page free and slipped it into my purse. Then, “Who is Owen Poteat?”

“I’ll know soon.”

I settled back and closed my eyes. The heat and the car’s motion acted like drugs. I was dropping off when my mobile sounded.

Joe Hawkins.

I clicked on.

“Hey, Joe.” Sluggish.

“Forensics called with a prelim on the goop from the barrel. Good old asphalt, just like we thought.”

“Not very useful.”

“Maybe no, maybe yes. The sample contained an additive called Rosphalt, a synthetic dry-mix material made by Royston. Provides waterproofing, skid resistance, protects against rutting and shoving, thermal fatigue cracking, that kind of thing. ”

“Uh-huh.” Stifling a yawn.

“Rosphalt comes in three types. One’s used mainly for roadways and tunnels, another’s used on airport runways. You still there?”

“I’m here.” Though struggling to stay awake.

“Your sample contained the third type, R50/Rx. That one’s used mostly by motor speedways.”

My brain reengaged. “At the Charlotte Motor Speedway?”

“Knew you’d ask, so I gave a call out there. The track has some pretty steep banking. What with the sun and cars screaming around the curves, the asphalt can heat up, go liquid, and sink right down. They use Rosphalt to provide better holding power.”