Finding the Afikoman - Clue #2

That's it! The rabbis stayed up so late discussing the exodus from Egypt that their students reminded them that it was time to say the morning shema.

(ד) שְׁמַ֖ע יִשְׂרָאֵ֑ל יְהוָ֥ה אֱלֹהֵ֖ינוּ יְהוָ֥ה ׀ אֶחָֽד׃
(4) Hear, O Israel! The LORD is our God, the LORD alone.

Clue #3

Based on four instances in the Torah where a parent teaches their child about the Exodus, the Haggadah describes Four Children. Which of the Four Children do you think the image below represents?