WARNING: SPOILERS FROM 2.2 ARCHON QUEST ACT 4
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TL; DR: Scaramouche escapes with the Gnosis instead of giving it to the Tsaritsa. Tsaritsa orders Childe to capture him, but Childe instead got defeated by Scaramouche. He died due to his Delusion/Foul Legacy consuming his life, Before the duel happened, Childe gave you a letter for Teucer and his family.
Source: Terry Chen
It was leaked by Terry Chen, the one who leaked about Signora’s death, Scaramouche being a puppet and Baal has a twin which is Ei. Terry Chen is a credible and reliable leak source but still, take this with a grain of salt. While these details are just a leak at the moment and are subject to change before 2.2 release date.
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