At the picnic, my mom said: "next time, don't bring the kid." Nobody stood up for my son until my eldest daughter pushed her chair back and said:

Marlo noticed everything. She saw me take a deep breath before answering family messages. She heard the conversations I thought were private. She knew when I was pretending not to be upset.

One evening, she sat beside me on my bed. "Mom, I want you to know something."

I looked up. "What is it?"

"What I did at the picnic? I'd do it again."

I brushed a strand of hair away from her face. "Sweetheart, you shouldn't have to fight your brother's battles."

She shook her head. "I'm not fighting them for him, Mom. I'm fighting them with you."

I hugged her. I thought that was the end of her involvement. I couldn't have been more mistaken.

About five weeks after the picnic, Marlo came home from school acting differently. She dropped her backpack beside the kitchen island and sat down with her phone. Every few minutes, the screen lit up. She'd glance at it, type something, and place it facedown.

"Everything okay, honey?"

"Yeah. Just school stuff."

I gave her space. We ate dinner together. Teo spent ten minutes explaining a complicated story about a lizard he'd seen on the playground. The story barely made sense, but Marlo and I applauded when he finished. For a little while, everything felt normal.

Then Teo went to bed. Around nine, I was folding towels in my bedroom when Marlo appeared in the doorway. Her arms were crossed, and she was holding her phone tightly.

"Mom, I need to show you something."

I set down a towel. "Okay."

"But you have to promise you won't get upset with me."

Something in her voice made me sit down. "Marlo, you're not in trouble. Just tell me."

She walked over and handed me her phone. The screen showed a text conversation. At the top was a name I hadn't expected to see: Grandma Patrice.

I looked at Marlo. "How long have you been talking to Grandma?"

"Three days."

My stomach tightened. I scrolled upward. The messages started innocently enough. "Hi, sweetheart. Grandma misses you." Then the tone changed. "I wish your mother would let me see you." "Your mom has always taken things too seriously." "Maybe you could talk to her for me."

I read each message twice. My mother had somehow gotten Marlo's phone number and had been contacting her privately. While telling the rest of our relatives that I was keeping the family apart, she'd been asking my thirteen-year-old daughter to convince me that I was wrong.

Then I noticed something that made me stop scrolling. There were almost no questions about Teo. No real concern about how he was feeling. No acknowledgment of the little boy who had spent weeks wondering why his grandmother didn't want him around.

I looked up at my daughter. "Why didn't you tell me she was messaging you?"

Marlo glanced toward the hallway, making sure Teo's bedroom door was closed. "Because I wanted to handle it myself first."

I stared at her. "Handle what?"

She sat beside me. "Mom, Grandma didn't just send me messages."