To complete the “Child’s Play” mystery in “Indiana Jones and the Great Circle,” follow these detailed steps:

### Step 1: Start the Quest
1. **Locate the First Bottle**:
– From the fast travel sign in the Village of Sukhothai, go up the stairs and walk straight across the boardwalk until you spot a staircase going down into the water on your right.
– At the bottom of the stairs, you’ll find a bottle floating in the water near Uncle Sunan, who is fishing west of Indy’s Hut.
– Pick up the bottle and break it to find the **First Bottle Message**.

### Step 2: Follow the First Bottle Message
1. **Head to the Northern Shrine**:
– From where you found the first bottle, head up the stairs and turn left. Walk through the Village and past the rice fields until you reach the northern shrine.
2. **Find the Second Bottle**:
– Look for a small open hut nearby where two people are conversing about thieving monkeys. On the right side of the hut, you’ll spot a slanted tree with a bottle lodged in its branches.
– Use your whip to yank the bottle down, then smash it to reveal the **Second Bottle Message**.

### Step 3: Follow the Second Bottle Message
1. **Locate the Tallest Bridge**:
– Leave the rice fields and head east. Go up the stairs to find the tallest bridge in the area.
2. **Retrieve the Third Bottle**:
– Jump off the left side of the bridge and swim forward until you reach solid ground. Look for a boulder beneath the bridge with a bottle sitting neatly on top.
– Retrieve the bottle, smash it, and collect the **Third Bottle Message**.

### Step 4: Follow the Third Bottle Message
1. **Swim Under the Bridge and Head South**:
– Swim under the bridge and head south toward the Village gate.
2. **Find the Final Treasure**:
– Walk around the gate to the right, where you’ll see a prominent boulder marked by three yellow flags.
– Beneath the boulder, you’ll find a small box containing the **Jumbo Shove Adventure Book** and the **Phra Ruang Statuette**.

### Summary of Rewards
– **Jumbo Shove Adventure Book**: Allows Indy to push heavyweight enemies upon unlocking it for 700 Adventure Points.
– **Phra Ruang Statuette**: A collectible item.

By following these steps, you will complete the “Child’s Play” mystery in “Indiana Jones and the Great Circle.”