The Billionaire's Equation

A Dangerous Proposition

Adrian's POV

I didn't move.

Neither did Zara.

Across the street, the man pretended to scroll through his phone, but every few seconds, his gaze drifted back to our table.

He wasn't interested in the café.

He was interested in us.

"Finish your coffee," I said quietly.

"I didn't order one."

"Then pretend you did."

Her eyes searched mine.

"You sound worried."

"I don't like being watched."

"Neither do I."

Without drawing attention, I reached into the inside pocket of my jacket and sent a single text.

Observe. Don't engage.

Within seconds, my head of security replied.

Already in position.

Good.

The man across the street had no idea he was now the one being watched.

---

"You still haven't answered my question," Zara said.

I shifted my attention back to her.

"Which one?"

"Why me?"

There it was again.

The question I'd avoided since the night outside the hotel.

I leaned back in my chair.

"Do you know how many accounting graduates Portugal produces every year?"

She frowned.

"No."

"Thousands."

"And?"

"Only one found an inconsistency everyone else ignored."

"You make it sound like luck."

"I don't believe in luck."

She folded her hands on the table.

"So what do you believe in?"

"Patterns."

"And I'm a pattern?"

"No."

I held her gaze.

"You're an exception."

For the first time, she didn't have a quick reply.

Instead, she looked away, watching students cross the university courtyard.

"You barely know me."

"I know enough."

"You know my academic record."

"I know more than that."

Her expression hardened.

"I don't like hearing that."

"I expected you wouldn't."

"I value my privacy."

"As you should."

"Then stop investigating me."

"I will."

She blinked.

"...You will?"

"As long as you agree to hear me out."

She gave a short, disbelieving laugh.

"So this is negotiation?"

"It's a proposal."

"I haven't accepted."

"I know."

---

A waiter approached our table.

"Would either of you like anything?"

"I'll have an espresso," I said.

The waiter looked at Zara.

"A cup of tea, please."

When he left, she looked at me suspiciously.

"You planned this."

"No."

"You seem to plan everything."

"I try."

"And when things don't go according to plan?"

I smiled faintly.

"I adapt."

She shook her head.

"I can't decide if that's impressive or exhausting."

"It's both."

---

My phone vibrated once.

A message from security.

Subject leaving the area. Unable to identify. Vehicle not registered locally.

Not registered locally?

That made no sense.

Professional.

Prepared.

Deliberate.

Whoever he was, he hadn't come to steal a wallet or photograph a celebrity.

He'd come for information.

The question was...

Whose?

Mine?

Or Zara's?

---

"Mr. Kingsley."

I looked up.

She was studying me carefully.

"You disappeared for a second."

"My apologies."

"Bad news?"

"Potentially."

She followed my gaze toward the street.

"The man?"

"You noticed."

"I notice everything."

A small smile tugged at my lips.

"So do I."

For a brief moment, silence settled between us.

It wasn't uncomfortable.

It was... thoughtful.

Unexpectedly so.

Then she reached into her bag and placed my business card on the table.

"I almost threw this away."

"You didn't."

"No."

"Why?"

She looked directly into my eyes.

"Because I couldn't figure you out."

I picked up the card, slid it back toward her, and said quietly,

"Keep it."

She hesitated.

"I don't mix business with my personal life."

"This isn't business."

"Then what is it?"

Before I could answer, my phone rang.

Miguel.

I answered immediately.

"What is it?"

His voice was tense.

"Sir... there's been another breach."

My expression darkened.

"What happened?"

"This time..."

He paused.

"...they accessed the university database."

My grip tightened around the phone.

"What were they looking for?"

"We don't know."

Another pause.

"But only one student's records were opened."

I already knew the answer before he said her name.

"Zara Daniels."

I slowly looked up.

She was still sitting across from me, completely unaware that someone had just broken into a secure database...

Looking for her.

I ended the call without another word.

The silence between Zara and me suddenly felt heavier.

She studied my face, her brows knitting together.

"That wasn't a business call, was it?"

"It was."

"But not the kind you expected."

"No."

She leaned back in her chair, folding her arms.

"You have that look."

"What look?"

"The one people wear when they're trying not to worry someone."

I almost smiled.

"You're observant."

"I've been told."

The waiter returned with our drinks, setting an espresso in front of me and a cup of chamomile tea before Zara.

Neither of us reached for them.

"Mr. Kingsley..."

"Adrian."

She blinked.

"What?"

"If we're going to continue this conversation, call me Adrian."

She hesitated.

"I don't think we're there yet."

"Fair enough."

She wrapped both hands around the warm cup.

"What happened?"

I considered lying.

It would have been easier.

Safer.

But something about Zara made dishonesty feel... unnecessary.

"There was unauthorized access to a secure database."

Her expression remained calm.

"And?"

"It involved your university."

Now she frowned.

"My university?"

"Yes."

She shook her head.

"I don't understand."

"Someone searched your student records."

Her fingers froze around the cup.

"My records?"

I nodded.

"They didn't access the entire database. Just yours."

A long silence followed.

Finally, she laughed.

It wasn't amusement.

It was disbelief.

"That's impossible."

"I wish it were."

"I've never done anything that would make someone hack into a university database."

"Maybe not intentionally."

Her eyes narrowed.

"You know something."

"I know enough to believe you're in danger."

The words hung between us.

She stared at me before slowly shaking her head.

"No."

"No?"

"I don't know you."

"You don't have to."

"I don't know if I can believe you."

"I expected that."

She looked out toward the courtyard where students laughed as they crossed the stone paths.

Their lives continued as though nothing had changed.

"I came here thinking my biggest concern was graduating with first-class honors."

She looked back at me.

"Now you're telling me someone hacked my university because of me?"

"I'm telling you someone wants information."

"What information?"

"I don't know."

"And you expect me to accept that?"

"No."

"I expect you to ask questions."

She exhaled slowly.

"I have one."

"I'm listening."

"Why do you care?"

There it was again.

The simplest question.

The hardest answer.

"I've spent years protecting Kingsley Holdings."

She waited.

"When I discovered your competition submission, I realized you had uncovered something connected to my company."

"You still haven't told me what."

"Because I'm still putting the pieces together."

"And I'm one of those pieces?"

I met her gaze.

"Yes."

She fell silent.

For the first time since we'd met, uncertainty replaced confidence.

Not fear.

Just uncertainty.

---

My phone vibrated again.

Miguel.

We've identified the vehicle. It's registered to a shell company in Madrid.

Madrid.

Spain.

Not Portugal.

Whoever was watching Zara had crossed borders.

This was becoming far more organized than I'd imagined.

I locked my phone and looked up.

Zara was watching me.

"You disappear into your thoughts a lot."

"I've been told that too."

She smiled faintly.

"You're not nearly as mysterious as you think."

"No?"

"No."

"I think you're carrying too much responsibility."

The statement caught me off guard.

People often described me as ruthless.

Cold.

Calculating.

Never that.

"You reached that conclusion after two conversations?"

"I reached it after watching you."

I almost laughed.

"So you've been observing me too."

"A little."

"And?"

"You don't seem like someone who's afraid."

"I'm not."

"I think you are."

I raised an eyebrow.

"Afraid of what?"

She looked directly into my eyes.

"Losing control."

The words landed with uncomfortable precision.

She had known me for less than twenty-four hours...

Yet she'd found the one truth I rarely admitted to myself.

Before I could respond, my phone rang for the third time.

Not Miguel.

An unknown number.

I answered.

"Adrian Kingsley."

The voice on the other end was distorted.

Cold.

Mechanical.

"You should stop looking."

My grip tightened around the phone.

"Who is this?"

"You've already involved the girl."

A pause.

"Now she'll pay for your curiosity."

The line went dead.

For a second, I couldn't move.

Then I looked across the table.

Zara was watching me.

She hadn't heard the caller's words.

But she had seen the color drain from my face.

"What happened?"

I stood immediately.

"We're leaving."

She frowned.

"I thought you said I wasn't getting into your car."

"I changed my mind."

"So did I."

She rose from her chair, her voice steady.

"If someone is threatening me..."

She picked up her bag and met my eyes without hesitation.

"...I'm not walking home alone."

As we stepped away from the café, neither of us noticed the man sitting inside a parked van across the street.

A camera rested in his hands.

Its lens followed Zara.

Click.

Another photograph.

Click.

Then he smiled.

"Found you."