My husband used to take the kids to visit Grandma all the time, until one day my daughter said: ‘Grandma is just a secret code.’

When my husband started taking our kids to grandma’s every week, I didn’t think much of it. But when my daughter blabbed about their weekly outings, I found myself following them around one day myself.

Until recently, I never thought I would question my husband’s integrity. Mike has always been a reliable partner and a wonderful father to our two children, seven-year-old Ava and Ben, who recently turned five. But lately, he has been acting strange.

My husband has been a wonderful and genuine father to our children. He played hide and seek with them in the backyard, attended school plays without complaint, and was the kind of dad who always had time for one more bedtime story.

So I didn’t give it a second thought when he started taking the kids to visit their grandmother, his mother, every Saturday morning. His mother, Diane, was always very attentive to our children. She baked biscuits with them, taught them to knit, and even let them ‘help’ in the garden.

Having lost her husband a year ago, Mike seemed determined to make sure she wasn’t lonely, and I admired that. They had grown closer since then, and for a few months he visited her with the kids on Saturdays.

But then…little things started to bother me.

For starters, my mother-in-law (MIL) stopped mentioning the visits. We usually talked at least once a week, and she always raved about the kids.

But when I casually asked if she enjoyed seeing them so regularly, there was a strange pause. ‘Oh, er, yes. Of course, honey,’ she replied, but there was a strange note in her voice, as if she wasn’t telling me the whole story. I wrote it off as grief.

Maybe she was more worried than I thought.

Then Mike insisted I stay home. ‘This is social time for mum and the kids, and you need to rest and be alone, Amy,’ he said, pulling me to him for a quick kiss. ‘Enjoy the quiet of the house for once.’

He wasn’t wrong, I loved quiet mornings, but something about the way he avoided looking me in the eye when I offered to come with him made me wonder. I should have trusted my intuition.

Ava ran into the house one crisp Saturday morning when Mike and Ben had already settled into the car. ‘Forgot my jacket!’ – she exclaimed, and her red curls jumped as she raced past me.

‘Don’t forget to behave yourself at Grandma’s!’ I teased, ruffling her hair as she grabbed her coat. She froze half a step and turned to me, her face serious. Then she said something I could never forget….

My daughter stopped mid-run, casting me a strange look.

‘Mummy,’ she whispered, as if she was sharing a secret, ’Grandma is just a SECRET CODE.

I blinked, my heart racing. ‘What do you mean, sweetie?’

Ava’s cheeks flushed, and her eyes widened. She glanced quickly toward my husband, who was standing outside, as if she’d already said too much. ‘I don’t have to tell you,’ she muttered and sprinted outside before I could ask anything else!

I stood in the doorway watching them prepare to leave, my thoughts racing. A secret code? What could it mean? Had Mike lied about where he was taking them? My stomach rumbled as I imagined the possibilities. Was ‘Granny’ a code for something he was hiding, or for someone else?

I needed answers, and it was now or never. Without thinking, I grabbed my purse and keys, my hands shaking. Mentally cancelling my plans for the day, I decided to follow them surreptitiously.

Mike’s car swerved suddenly, but definitely not towards Diane’s house!

I followed behind, trying to keep my distance. My pulse quickened as he pulled into the car park of a quiet park on the other side of town. From my seat a few rows away, I watched him get out of the car with our children, holding their hands as they approached a bench under a large oak tree.

Then I saw her…

A woman in her thirties with brown hair tied back in a ponytail was waiting by the bench. She was holding the hand of a little girl – maybe nine years old, with the same colour hair.

My chest tightened as I saw the little girl smile and rush over to Mike, who knelt down to pick her up in his arms as if he’d done it hundreds of times before! Ava and Ben giggled as they joined the older girl and the three of them played while my husband talked to the woman.

I couldn’t just sit there! Anger and the need for answers was burning in my chest! But when I got out of the car and walked over to them, my heart was pounding in my ears and my legs felt like jelly. Mike’s face went pale as soon as he saw me.

‘Amy,’ he said, standing up so fast the woman flinched. ‘What are you doing here?’

I folded my arms, trying to keep my voice from shaking. ‘I guess that’s for me to ask you. Who is she? And who is this little girl?’

Before he could answer, Ava and Ben spotted me and came running in, calling ‘mummy’, with the little girl in their arms.